America's explorers of space ; including a special report on UFO's /

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

The UFO controversy in America /
by: Jacobs, David Michael, 1942-
Published: (1975)

Are there alien beings? : The story of UFOs /
by: Snyder, Gerald S.
Published: (1980)

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

Monsters from outer space? /
by: Wise, William
Published: (1978)

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

UFOs /
Published: (2005)

UFOs /
Published: (2022)

The UFO handbook : a guide to investigating, evaluating, and reporting UFO sightings /
by: Hendry, Allan
Published: (1979)

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

Aliens from space ; the real story of unidentified flying objects /
by: Keyhoe, Donald E. (Donald Edward), 1897-
Published: (1973)

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

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

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

The UFO phenomenon /
Published: (1987)

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

The UFO evidence.
Published: (2001)

UFOs: interplanetary visitors : a UFO investigator reports on the facts, fables, and fantasies of the flying saucer conspiracy /
by: Fowler, Raymond E., 1933-
Published: (1979)

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

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

UFOs ... and their mission impossible /
by: Wilson, Clifford A.
Published: (1975)

UFO contact at Pascagoula /
by: Hickson, Charles
Published: (1983)

The official guide to UFOs.
Published: (1968)

UFOs : the public deceived /
by: Klass, Philip J.
Published: (1983)

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

UFO's, past, present, and future /
by: Emenegger, Robert
Published: (1974)

Situation red, the UFO siege! /
by: Stringfield, Leonard H.
Published: (1977)

Observing UFOs : an investigative handbook /
by: Haines, Richard F., 1937-
Published: (1980)

Official guide to UFO sightings /
by: Sifakis, Carl
Published: (1979)

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

The UFO experience ; a scientific inquiry /
by: Hynek, J. Allen (Joseph Allen), 1910-1986
Published: (1974)

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

Beyond earth: man's contact with UFOs /
by: Blum, Ralph, 1932-
Published: (1974)

The UFO evidence : (unidentified flying objects) /
Published: (1964)

Uninvited visitors ; a biologist looks at UFO's /
by: Sanderson, Ivan Terence, 1911-1973
Published: (1967)

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