Are the invaders coming? /

UFOs /
by: Canadeo, Anne
Published: (1990)

Science meets the UFO enigma /
by: Bragg, Desmond
Published: (2000)

Flying saucers : magic in the skies : a psychohistory /
by: Billig, Otto
Published: (1981)

Wonders in the sky : unexplained aerial objects from antiquity to modern times and their impact on human culture, history, and beliefs.
by: Vallee, Jacques
Published: (2010)

UFOs--God's chariots? : Flying saucers in politics, science, and religion /
by: Peters, Ted, 1941-
Published: (1977)

UFOs : opposing viewpoints /
by: Arvey, Michael
Published: (1989)

UFOs : generals, pilots, and government officials go on the record /
by: Kean, Leslie
Published: (2010)

UFO's over the Americas /
by: Lorenzen, Jim
Published: (1968)

Flying saucers are watching us /
by: Binder, Otto O. (Otto Oscar), 1911-1975
Published: (1968)

New U F O breakthrough /
by: Steiger, Brad
Published: (1968)

The official guide to UFOs.
Published: (1968)

Flying saucers and the three men /
by: Bender, Albert K.
Published: (1968)

UFOs--identified /
by: Klass, Philip J.
Published: (1968)

Mysteries of the skies ; UFOs in perspective /
by: Lore, Gordon I. R.
Published: (1968)

Flying saucers ; a modern myth of things seen in the skies /
by: Jung, C. G. (Carl Gustav), 1875-1961
Published: (1969)

Flying saucers ; a modern myth of things seen in the skies /
by: Jung, C. G. (Carl Gustav), 1875-1961
Published: (1959)

UFOs: the whole story /
by: Lorenzen, Coral E., 1925-, et al.
Published: (1969)

Confrontations : a scientist's search for alien contact /
by: Vallee, Jacques
Published: (1990)

UFOs explained /
by: Klass, Philip J.
Published: (1976)

Final report of the scientific study of unidentified flying objects /
by: Condon, Edward Uhler, 1902-1974
Published: (1969)

Close encounters : a factual report on UFOs /
by: Larsen, Sherman J.
Published: (1978)

Is another world watching? : the riddle of the flying saucers /
by: Heard, Gerald, 1889-1971
Published: (1953)

Flying saucer pilgrimage ; the story of an amazing private research which took two year's time and over 23,000 miles of travel /
by: Reeve, Bryant
Published: (1957)

Is another world watching? : The riddle of the flying saucers.
by: Heard, Gerald, 1889-1971
Published: (1951)

UFOs /
Published: (2005)

UFOs and the limits of science /
by: Story, Ronald
Published: (1981)

Flying saucers and common sense.
by: Girvan, Waveney
Published: (1956)

Official UFO Encounter '96 program /
Published: (1996)

Science and the UFOs /
by: Randles, Jenny
Published: (1985)

The flying saucer reader.
by: Adler, Bill
Published: (1967)

Casebook of a UFO investigator : a personal memoir /
by: Fowler, Raymond E., 1933-
Published: (1981)

Flying saucers.
by: Menzel, Donald H. (Donald Howard), 1901-1976
Published: (1953)

Flying saucers on the attack /
by: Wilkins, Harold Tom, 1891-
Published: (1967)

Anatomy of a phenomenon : unidentified objects in space--a scientific appraisal.
by: Vallee, Jacques
Published: (1965)

Project Identification : the first scientific field study of UFO phenomena /
by: Rutledge, Harley D.
Published: (1981)

Flying saucer from Mars.
by: Allingham, Cedric, 1922-
Published: (1955)