1968

Klass, Philip J “UFOs – Identified” (1968) (available on Amazon USA and on Amazon UK). Discusses his plasma theory.

1974

Klass, Philip J “UFOs Explained” (1974) (available on Amazon USA and on Amazon UK)

1983

Klass, Philip J “UFOs – The Public Deceived” (1983) (available on Amazon USA and on Amazon UK)

1989

Klass, Philip J “UFO Abductions: A Dangerous Game” (1989) (available on Amazon USA and on Amazon UK)

1997

Klass, Philip J “The Real Roswell Crashed-Saucer Coverup” (1997) (available on Amazon USA and on Amazon UK)

1999

Baker, Alan in his “The Encyclopaedia of Alien Encounters” (1999) (available on Amazon USA and on Amazon UK) at page 137 (in an entry entitled “Klass, Philip Julian”) of the Virgin hardback edition.

1

1978

Barry, Bill in his “Ultimate Encounter” (1978) (available on Amazon USA and on Amazon UK) at pages 146 (in Chapter 11), 167-180 (in Chapter 14) of the Corgi paperback edition.

15

1990

Blum, Howard in his “Out There“ (1990) (available on Amazon USA and on Amazon UK) at pages 214-220 (in Chapter 31) of the Simon & Schuster hardback edition, pages 237-243 of the Pocket Star paperback edition.

7

1988

Boyd, Robert D in his “International Who’s Who in Ufology Directory” (1988) at page 128 of the PMT Publishing softcover edition.

1

1990

Clark, Jerome in his “The UFO Encyclopedia: 1st edition: Volume 1 – UFOs in the 1980s” (1990) (available on Amazon USA and on Amazon UK) at pages 150-151 of the Apogee hardback edition in an entry entitled “Klass, Philip Julian (1919- )”.

2

1998

Clark, Jerome in his “The UFO Encyclopedia: The Phenomenon from the Beginning - 2^nd edition” (1998) (available on Amazon USA and on Amazon UK) at pages 564-566 of Volume 1:A-K (in an entry entitled “Klass, Philip Julian (1919- )”) of the Omnigraphics hardback edition.

3

1998

Clark, Jerome in his “The UFO Encyclopedia: The Phenomenon from the Beginning - 2^nd edition” (1998) (available on Amazon USA and on Amazon UK) in Volume 2:L-Z at pages 597-598 (forming part of an entry entitled “McDonald, James Edward (1920-1971)”) of the Omnigraphics hardback edition.

2

1978

Cohen, Daniel in his “The World of UFOs” (1978) (available on Amazon USA and on Amazon UK) at page 80 (in Chapter 10) of the Lippincott hardback edition.

1

1989

Conroy, Ed in his “Report on Communion” (1989) (available on Amazon USA and on Amazon UK) at pages 204 (in Chapter 6), 332, 333 (in Chapter 9) of the Avon paperback edition.

3

1991

Cooper, William in his “Behold a Pale Horse” (1991) (available on Amazon USA and on Amazon UK) at pages 226, 228 (in Chapter 12) of the Light Technology softcover edition.

2

2003

Darling, David in his online encyclopedia, “The Encyclopedia of Astrobiology, Astronomy and Spaceflight” (2003) in the entry entitled “Klass, Philip J”. The relevant entry is available online at: “http://www.daviddarling.info/encyclopedia/K/Klass.html

1

1999

Davidson, Keay in his “Carl Sagan: A Life” (1999) (available on Amazon USA and on Amazon UK) at page 441 (in the Notes) of the Wiley softcover edition.

1

2000

Dolan, Richard M in his “UFOs and the National Security State: Volume 1: 1941-1973” (2000) (available on Amazon USA and on Amazon UK) at page 403 (in Chapter 7) of the Keyhole softcover edition, at pages 309-310 of the 2002 revised Hampton Road softcover edition.

1

2003

Druffel, Ann in her “Firestorm : Dr James E McDonald's Fight for UFO Science” (2003) (available on Amazon USA and on Amazon UK) at pages 164-166 (in Chapter 8), 194, 195, 196-198, 204, 205, 206-207, 210 (in Chapter 9), 330-331 (in Chapter 13), 464 (in Chapter 17), 487 (in Chapter 18) of the Wild Flower Press softcover edition.

17

1978

Edelson, Edward in his “Who Goes There?” (1978) (available on Amazon USA and on Amazon UK) at page 82 (in Chapter 7) of the NEL paperback edition (with the same page numbering in the NEL paperback edition combining this book and Chris Boyce’s “Extraterrestrial Encounter).

1

1967

Edwards, Frank in his “Flying Saucers – Here and Now!” (1967) (available on Amazon USA and on Amazon UK) at pages 160-161 (in Chapter 8) of the Lyle Stuart hardback edition, at pages 94-95 of the Bantam paperback edition.

2

1997

Emmons, Charles F in his “At The Threshold: UFOs, Science and the New Age” (available on Amazon USA and on Amazon UK) at pages 86-87 (in Chapter 5), 229-230 (in the Appendix, entitled “Ufologist Case Studies / Biographies) of the Wild Flower Press softcover edition.

4

1981

Fowler, Raymond E in his “Casebook of a UFO Investigator” (1981) (available on Amazon USA and on Amazon UK) at pages 19-20 (in Chapter 2) of the Prentice-Hall hardback edition.

2

1991

Friedman, Stanton in an interview in “UFOs And The Alien Presence: Six Viewpoints” (1991) (Edited by Michael Lindemann) (available on Amazon USA and on Amazon UK) at page 14 (in Chapter 1) of the 2002 Group softcover edition.

1

2007

Friedman, Stanton and Marden, Kathleen in their “Captured! The Betty and Barney Hill UFO Experience” (2007) (available on Amazon USA and on Amazon UK) at pages 249-250 of the New Page Books softcover edition.

2

2008

Friedman, Stanton in his “Flying Saucers and Science : A Scientist Investigates the Mysteries of UFOs” (2008) (available on Amazon USA and on Amazon UK) at pages 52 (in Chapter 1), 249-250 (in Chapter 10) of the New Page softcover edition.

3

1997

Friedman, Stanton T in his “Top Secret – MAJIC” (1997) (available on Amazon USA and on Amazon UK) at pages 119-126 (in Chapter 7) of the Michael O’ Mara hardback edition.

8

1999

Hall, Michael David in his “UFOs : A Century of Sightings” (1999) (available on Amazon USA and on Amazon UK) at page 302 (in Chapter 7) of the Galde Press softcover edition.

1

1988

Hall, Richard in his “Uninvited Guests” (1988) (available on Amazon USA and on Amazon UK) at pages 115-116 (in Chapter 6), 184-185 (in Chapter 12) of the Aurora Press paperback edition.

4

2000

Hansen, Terry in his “The Missing Times : News Media Complicity in the UFO Cover-Up : News Media Complicity in the UFO Cover -Up” (2000) (available on Amazon USA and on Amazon UK) at pages 229, 248-252 (in Chapter 6) of the Xlibris softcover edition.

6

1976

Holzer, Hans in his “The UFOnauts” (1976) (available on Amazon USA and on Amazon UK) at page 16 (in Chapter 1) of the Fawcett Gold Medal paperback edition.

1

1975

Hynek, J Allen and Vallee, Jacques in their “The Edge of Reality” (1975) (available on Amazon USA and on Amazon UK) at page 230 (in Chapter 8) of the Henry Regnery hardback edition.

1

1988

Keel, John A in his “Disneyland of the Gods” (1988) (available on Amazon USA and on Amazon UK) at page 28 (in the unnumbered chapter entitled “A Short History of Boobery”) of the I-Net softcover edition.

1

1995

Lyne, William P in his “Space Aliens from the Pentagon” (1995) (available on Amazon USA and on Amazon UK) at pages 212-213 (in Chapter 8) of the Creatopia Productions softcover edition.

2

1998

Matheson, Terry in his “Alien Abductions : Creating a Modern Phenomenon” (1998) (available on Amazon USA and on Amazon UK) at pages 23-24, 282 of the Prometheus hardback edition.

3

1989

Meaden, Terence in his “The Circles Effect and its Mysteries” (1989) (available on Amazon USA and on Amazon UK) at page 98 (in Chapter 7) of the Artetech hardback edition.

1

2002

Moseley, James and Pflock, Karl in their “Shockingly Close to the Truth!” (2002) (available on Amazon USA and on Amazon UK) at pages 229-230 (in Chapter 10), 323-324 (in Chapter 18) of the Prometheus hardback edition.

4

1974

Quintanilla, Hector (Major) in his unpublished manuscript entitled “UFOs: An Air Force Dilemma” (copyright 1974) at page 22 of the manuscript, at page 35 of the NIDS pdf version available free on-line on various websites, including at the following link:

http://www.projectbluebook.us/UFOs%20An%20Air%20Force%20Dilemma%20By%20Quintanilla.pdf

http://www.nidsci.org/pdf/quintanilla.pdf

1

1987

Randles, Jenny in “The UFO Conspiracy” (1987) (available on Amazon USA and on Amazon UK) at pages 104-105 (in Chapter 17) of the Barnes & Noble hardback edition.

2

1988

Randles, Jenny in her “Abduction“ (1988) (available on Amazon USA and on Amazon UK) at page 195 (in Chapter 10) of the Hale hardback edition (with the same page numbering in the Headline paperback edition).

1

1994

Ritchie, David in his “UFO : The Definitive Guide” (1994) (available on Amazon USA and on Amazon UK) at pages 119-120 (in an entry entitled “Klass, Philip (1919- )”) of the MJF hardback edition.

2

1980

Sachs, Margaret in her “The UFO Encyclopedia“ (1980 (available on Amazon USA and on Amazon UK) at pages 172-173 (in an entry entitled “Klass, Philip J.”) of the Corgi softback edition.

2

2007

Saler, Benson in “Alien Worlds : Social and Religious Dimensions of Extraterrestrial Contact” (2007) (edited by Diana Tumminia) (available on Amazon USA and on Amazon UK) at pages 135-136 (in Chapter 7) of the Syracuse University Press softcover edition.

2

1968

Saunders, David R and Harkins, R Roger, with lengthy extract, in their “UFOs? Yes!” (1968) (available on Amazon USA and on Amazon UK) at page 178 (in Chapter 17) of the Signet paperback edition.

1

1994

Schnabel, Jim in his “Dark White” (1994) (available on Amazon USA and on Amazon UK) at pages 92-112 (Chapter 6 generally), 114 (in Chapter 7), 279 (in the Epilogue) of the Hamish Hamilton softcover edition.

23

1998

Shostak, Seth in his “Sharing the Universe” (1998) (available on Amazon USA and on Amazon UK) at page 137 (in Chapter 7) of the Berkeley Hills softcover edition.

1

1977

Slater, Philip in his “The Wayward Gate: Science and the Supernatural” (1977) (available on Amazon USA and on Amazon UK) at pages 70, 79 (in Chapter 3) of the Beacon hardback edition.

2

1997

Spencer, John and Spencer, Anne in their “Fifty Years of UFOs” (1997) (available on Amazon USA and on Amazon UK) at page 63 (in the unnumbered chapter entitled “1957-1967”) of the Boxtree hardback edition.

1

1966

Stanton, L Jerome in his “Flying Saucers : Hoax or Reality?” (1966) (available on Amazon USA and on Amazon UK) at page 20 (in Chapter 1) of the Belmont paperback edition.

1

2001

Story, Ronald in “The Encyclopedia of Extraterrestrial Encounters” (2001) (edited by Ronald Story) (available on Amazon USA and on Amazon UK) at pages 300-301 (in an entry entitled “Klass, Philip J”) of the New American Library softcover edition, at pages 293-295 of the pdf edition (with the same page numbering in the Microsoft Word edition).

2

1980

Story, Ronald in “The Encyclopedia of UFOs” (1980) (edited by Ronald Story) (available on Amazon USA and on Amazon UK) at page 198 (in an entry entitled “Klass, Philip J.”) of the NEL hardback edition.

1

2001

Story, Ronald in “The Mammoth Encyclopedia of Extraterrestrial Encounters” (2001) (edited by Ronald Story) (available on Amazon USA and on Amazon UK) at pages 360-361 (in an entry entitled “Klass, Philip J”) of the Robinson softcover edition.

2

1991

Thompson, Keith in his “Angels and Aliens: UFOs and the Mythic Imagination” (1991) (available on Amazon USA and on Amazon UK) at page 180 (in Chapter 13) of the Fawcett softcover edition.

1

2004

Tonnies, Mac in his “After the Martian Apocalypse” (2004) (available on Amazon USA and on Amazon UK) at page 249 (in Chapter 11) of the Paraview Pocket Books softcover edition.

1

1992

Vallee, Jacques in his “Forbidden Science: Journals 1957-1969.” (1992) (available on Amazon USA and on Amazon UK) at pages 242-243 (in Chapter 14, journal entry for 1967.0206) of the North Atlantic Books hardback edition, at pages 246-247 of the 1996 abridged Marlowe paperback edition.

2

1997

Walton, Travis in his “Fire In The Sky : The Walton Experience” (1997) (available on Amazon USA and on Amazon UK) at pages 141 (in Chapter 10), 272-274, 277, 279-280 (in Chapter 16), 285-292, 295-302, 343-344, 358-359, 370 (in the Appendix) of the Marlowe & Co softcover edition.

28

1979

Westrum, Ronald M in “UFO Phenomena and the Behavioral Scientist” (1979) (edited by Richard F Haines) (available on Amazon USA and on Amazon UK) at page 159 (in Chapter 8) of the Scarebrow Press hardback edition.

1