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333 items in Theories
Pennick, Nigel: The subterranean kingdom. A survey of man-made structures beneath the earth (Sc)
Pennick, Nigel: The subterranean kingdom. A survey of man-made structures beneath the earth (Sc)
$15
Constable, Trevor James: The cosmic pulse of life. The revolutionary biological power behind UFOs (Sc) *Free*
Constable, Trevor James: The cosmic pulse of life. The revolutionary biological power behind UFOs (Sc) *Free*
Randles, Jenny: UFO crash landing? Friend or foe? (Sc) *Free*
Randles, Jenny: UFO crash landing? Friend or foe? (Sc) *Free*
Randles, Jenny & Hough, Peter: Looking for the aliens. (Sc)
Randles, Jenny & Hough, Peter: Looking for the aliens. (Sc)
$5 (Out of Stock)
Moravec, Mark: PSIUFO phenomena. A study of UFOs and the paranormal. (Sc)
Moravec, Mark: PSIUFO phenomena. A study of UFOs and the paranormal. (Sc)
$60
Allen, W. Gordon: Overlords and Olympians. Introduction to para-psycho-physics (Sc)
Allen, W. Gordon: Overlords and Olympians. Introduction to para-psycho-physics (Sc)
$125
Dimond, Michael: UFOs: Demonic activity & elaborate hoaxes meant to deceive mankind. (Sc)
Dimond, Michael: UFOs: Demonic activity & elaborate hoaxes meant to deceive mankind. (Sc)
$15 (Out of Stock)
Kerner, Nigel: Grey aliens and the harvesting of souls. The conspiracy to genetically tamper with humanity (Sc)
Kerner, Nigel: Grey aliens and the harvesting of souls. The conspiracy to genetically tamper with humanity (Sc)
$10
Fawcett, George. D: Human reactions to UFOs worldwide (1940-1983, Sc)
Fawcett, George. D: Human reactions to UFOs worldwide (1940-1983, Sc)
$30 (Out of Stock)
Baker, Robert A.: Hidden memories. Voices and visions from within (Sc)
Baker, Robert A.: Hidden memories. Voices and visions from within (Sc)
$7
King, Jon: Cosmic top secret. The unseen agenda (Sc))
King, Jon: Cosmic top secret. The unseen agenda (Sc))
$45
Branton [Bruce A. Walton]: The Dulce wars: Underground alien bases & the battle for planet earth. (Sc)
Branton [Bruce A. Walton]: The Dulce wars: Underground alien bases & the battle for planet earth. (Sc)
$12
Inglesby, Eric: UFO's and the Christian
Inglesby, Eric: UFO's and the Christian
$175
Barton, Michael X.: The German saucer story. (Sc)
Barton, Michael X.: The German saucer story. (Sc)
$125
Stillings, Dennis (ed.): Cyber-biological studies of the imaginal component in the UFO contact experience (sc)
Stillings, Dennis (ed.): Cyber-biological studies of the imaginal component in the UFO contact experience (sc)
$55 (Out of Stock)
Partridge, Christopher (editor): Ufo Religions (sc)
Partridge, Christopher (editor): Ufo Religions (sc)
$35
Constable, Trevor James: Sky creatures (Pb)
Constable, Trevor James: Sky creatures (Pb)
$30
Benton, Floria: Hollow earth mysteries and the polar shift. (Sc)
Benton, Floria: Hollow earth mysteries and the polar shift. (Sc)
$165 (Out of Stock)
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers
$90
Guieu, Jimmy [Henri-René Guieu]: Les soucoupes volantes viennent d'un autre monde (Sc)
Guieu, Jimmy [Henri-René Guieu]: Les soucoupes volantes viennent d'un autre monde (Sc)
$15
Michel, Aimé: Flying saucers and the straight-line mystery
Michel, Aimé: Flying saucers and the straight-line mystery
$70
Maclellan, Alec: The Lost world of Agharti. The mystery of Vril power
Maclellan, Alec: The Lost world of Agharti. The mystery of Vril power
$195
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers. [Report catalogue excluded from this edition]
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers. [Report catalogue excluded from this edition]
$85
Jenkins, Stephen: The undiscovered country. Adventures into other dimensions
Jenkins, Stephen: The undiscovered country. Adventures into other dimensions
$90
Vieroudy, Pierre [pseud for Pierre Berthault]: Ces OVNI qui annoncent le surhomme
Vieroudy, Pierre [pseud for Pierre Berthault]: Ces OVNI qui annoncent le surhomme
$12
Freixedo, Salvador: La religion entre la parapsicologia y los OVNIs
Freixedo, Salvador: La religion entre la parapsicologia y los OVNIs
$18
Pinvidic, Thierry (ed.): OVNI. Vers une anthropologie d'un mythe contemporain (Sc)
Pinvidic, Thierry (ed.): OVNI. Vers une anthropologie d'un mythe contemporain (Sc)
$25
Blondet, Maurizio & Pinotti, Roberto: Intelligenze extraterrestri
Blondet, Maurizio & Pinotti, Roberto: Intelligenze extraterrestri
$15
Ribera, Antonio: En el túnel del tiempo
Ribera, Antonio: En el túnel del tiempo
$16
Méheust, Bertrand: Science fiction et soucoupes volantes. (Sc)
Méheust, Bertrand: Science fiction et soucoupes volantes. (Sc)
$20
Lilly, John C: The scientist: a metaphysical autobiography (Sc)
Lilly, John C: The scientist: a metaphysical autobiography (Sc)
$5 $15
Svahn, Clas: 700 böcker om ufo - en översikt 1908-2022 (Sc)
Svahn, Clas: 700 böcker om ufo - en översikt 1908-2022 (Sc)
$15
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers (Pb)
Vallée, Jacques: Passport to Magonia. From folklore to flying saucers (Pb)
$40 (Out of Stock)
Andrews, George C.: Extra-terrestrials among us. Llewllyn's PSI-TECH Series (Sc)
Andrews, George C.: Extra-terrestrials among us. Llewllyn's PSI-TECH Series (Sc)
$6
Vallée, Jacques: The Invisible college. What a group of scientists has discovered about UFO influences on the human race
Vallée, Jacques: The Invisible college. What a group of scientists has discovered about UFO influences on the human race
$25
Brookesmith, Peter [ed.]: UFOs: where do they come from? Contemporary theories on the origin of the phenomenon (Sc)
Brookesmith, Peter [ed.]: UFOs: where do they come from? Contemporary theories on the origin of the phenomenon (Sc)
$2 (Out of Stock)
Vallée, Jacques: Confrontations A scientist's search for alien contact
Vallée, Jacques: Confrontations A scientist's search for alien contact
$10
Keel, John A.: Why UFOs? Operation Trojan Horse (Pb)
Keel, John A.: Why UFOs? Operation Trojan Horse (Pb)
$25
Keel, John A.: Strange creatures from time and space (Pb)
Keel, John A.: Strange creatures from time and space (Pb)
$20
Jenkins, Stephen: The undiscovered country. Adventures into other dimensions (Pb)
Jenkins, Stephen: The undiscovered country. Adventures into other dimensions (Pb)
$40 (Out of Stock)
Pozos, Randolfo Rafael: The face on Mars: Evidence for a Lost Civilization? (Sc)
Pozos, Randolfo Rafael: The face on Mars: Evidence for a Lost Civilization? (Sc)
$8
Schwarz, Berthold E.: UFO dynamics. Psychiatric and psychic aspects of the UFO syndrome. Book II (Sc)
Schwarz, Berthold E.: UFO dynamics. Psychiatric and psychic aspects of the UFO syndrome. Book II (Sc)
$40
Schwarz, Berthold E.: UFO dynamics. Psychiatric and psychic aspects of the UFO syndrome. Book I (Sc)
Schwarz, Berthold E.: UFO dynamics. Psychiatric and psychic aspects of the UFO syndrome. Book I (Sc)
$40
Eden, Jerome: Planet in trouble. The UFO assault on earth
Eden, Jerome: Planet in trouble. The UFO assault on earth
$40
Haines, Richard F. (ed.): UFO phenomena and the behavioral scientist
Haines, Richard F. (ed.): UFO phenomena and the behavioral scientist
$60
Brunstein, Karl A.: Beyond the four dimensions. Reconciling physics, parapsychology and UFOs
Brunstein, Karl A.: Beyond the four dimensions. Reconciling physics, parapsychology and UFOs
$25
Coverdell, Dr. Donald P. (Th.D.): The mystery clouds (Sc)
Coverdell, Dr. Donald P. (Th.D.): The mystery clouds (Sc)
$10
Commander X [Jim Keith]: The Ultimate deception (Sc)
Commander X [Jim Keith]: The Ultimate deception (Sc)
$25
Thompson, Richard L.: Alien identities. Ancient insights into modern UFO phenomena (Sc)
Thompson, Richard L.: Alien identities. Ancient insights into modern UFO phenomena (Sc)
$8
Andrews, George C.: Extra-terrestrial friends and foes (Sc)
Andrews, George C.: Extra-terrestrial friends and foes (Sc)
$15
Haber, Heinz: Vänner i världsrymden.
Haber, Heinz: Vänner i världsrymden.
$5
Nilson, Peter: Stjärnvägar. En bok om kosmos (Pb)
Nilson, Peter: Stjärnvägar. En bok om kosmos (Pb)
$3
Stoneley, Jack & Lawton, A.: Is anyone out there? (Pb)
Stoneley, Jack & Lawton, A.: Is anyone out there? (Pb)
$2
Imbrogno, Philip: Interdimensional universe. The new science of UFOs, paranormal phenomena & otherdimensional beings (Sc)
Imbrogno, Philip: Interdimensional universe. The new science of UFOs, paranormal phenomena & otherdimensional beings (Sc)
$6
Johnson, Pete: Besökaren. (Orig.: Eyes of the alien.)
Johnson, Pete: Besökaren. (Orig.: Eyes of the alien.)
$3
Brown, Courtney: Cosmic voyage. True evidence of extraterrestrials visiting Earth. (Pb)
Brown, Courtney: Cosmic voyage. True evidence of extraterrestrials visiting Earth. (Pb)
$5
Beckley, Timothy G.: The Shaver mystery and the inner earth
Beckley, Timothy G.: The Shaver mystery and the inner earth
$45 (Out of Stock)
Linde, Peter: Jakten på liv i universum
Linde, Peter: Jakten på liv i universum
$20
Roberts, Anthony & Gilbertson, Geoff: The Dark Gods
Roberts, Anthony & Gilbertson, Geoff: The Dark Gods
$15 (Out of Stock)
Orue, Enrique Mercado: 28 horas a bordo de un OVNI
Orue, Enrique Mercado: 28 horas a bordo de un OVNI
$18 (Out of Stock)
Morris, David: The masks of Lucifer. Technology and the occult in twentieth-century popular literature
Morris, David: The masks of Lucifer. Technology and the occult in twentieth-century popular literature
$20 (Out of Stock)
Gerloff, Hans: The crisis in parapsychology; stagnation or progress (Sc)
Gerloff, Hans: The crisis in parapsychology; stagnation or progress (Sc)
$20
Brookesmith, Peter[ed.] [The unexplaned]: The occult connection. The ways in which man has tried to make sense of his universe
Brookesmith, Peter[ed.] [The unexplaned]: The occult connection. The ways in which man has tried to make sense of his universe
$12
Stevens, Henry: Hitler's flying saucers. A guide to German flying discs of the second world war
Stevens, Henry: Hitler's flying saucers. A guide to German flying discs of the second world war
$14
Méheust, Bertrand: Soucoupes volantes et folklore (Sc)
Méheust, Bertrand: Soucoupes volantes et folklore (Sc)
$35 (Out of Stock)
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