They knew too much about flying saucers.

Flying saucer occupants /
by: Lorenzen, Coral E., 1925-
Published: (1967)

Behind the flying saucers /
by: Scully, Frank, 1892-1964
Published: (1951)

The flying saucer conspiracy.
by: Keyhoe, Donald E. (Donald Edward), 1897-
Published: (1955)

Behind the flying saucers.
by: Scully, Frank, 1892-1964
Published: (1950)

The flying saucer story /
by: Le Poer Trench, Brinsley, Lord Clancarty, 1911-1995
Published: (1966)

Flying saucers on the attack /
by: Wilkins, Harold Tom, 1891-
Published: (1954)

Flying saucerers : a social history of UFOlogy /
by: Clarke, David
Published: (2007)

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)

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

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

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

Flying saucers, serious business.
by: Edwards, Frank, 1908-1967
Published: (1966)

Flying saucers, serious business /
by: Edwards, Frank, 1908-1967
Published: (1966)

Flying saucers, here and now!.
by: Edwards, Frank, 1908-1967
Published: (1967)

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

Flying saucers have arrived! /
by: Adler, Bill
Published: (1970)

Flying saucers and the three men /
by: Bender, Albert K.
Published: (1962)

Flying saucers have landed /
by: Leslie, Desmond, 1921-2001
Published: (1953)

Flying saucers: hoax or reality? /
by: Stanton, L. Jerome
Published: (1966)

What we really know about flying saucers /
by: Binder, Otto O. (Otto Oscar), 1911-1975
Published: (1967)

The age of flying saucers ; notes on a projected history of unidentified flying objects.
by: Flammonde, Paris
Published: (1971)

Flying saucers from outer space.
by: Keyhoe, Donald E. (Donald Edward), 1897-
Published: (1953)

The world of flying saucers ; a scientific examination of a major myth of the space age /
by: Menzel, Donald Howard
Published: (1963)

Men in the flying saucers identified: not a mystery! /
by: Grant, Walter V.
Published: (1950)

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)

Space, gravity and the flying saucer /
by: Cramp, Leonard G.
Published: (1955)

Flying saucer review.

The Bible and flying saucers /
by: Downing, Barry H., 1938-
Published: (1968)

Behind the flying saucer mystery /
by: Adamski, George, 1891-1965
Published: (1974)

Flying saucers : top secret.
by: Keyhoe, Donald E. (Donald Edward), 1897-
Published: (1960)

The saucers speak : a documentary report of interstellar communication and radiotelegraphy /
by: Williamson, George Hunt, 1926-
Published: (1963)

Flying saucers and the U. S. Air Force.
by: Tacker, Lawrence J.
Published: (1960)

On board flying saucers /
by: Gibbons, Gavin, 1922-
Published: (1967)

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

The phenomena of flying saucers and spatial people.
by: Douglas, Ulysee
Published: (1969)