U.F.O.'s - a scientific debate.
Subtitle: Edited by Carl Sagan and Thornton Page.
Contributors: Sagan, Carl, 1934-1996; Page, Thornton.; American Association for the Advancement of Science
Publisher: Cornell University Press
Published: 1973
Place of publication: Ithaca [N.Y.]
Language: eng
Number of pages: 310
Subjects: Unidentified flying objects -- Congresses
Notes: Papers presented at a symposium sponsored by the American Association for the Advancement of Science, held in Boston on Dec. 26-27, 1969.  Includes bibliography.