APA (7th ed.) Citation

American Association for the Advancement of Science, Sagan, C., & Page, T. (1972). UFO's--a scientific debate. Cornell University Press.

Chicago Style (17th ed.) Citation

American Association for the Advancement of Science, Carl Sagan, and Thornton Page. UFO's--a Scientific Debate. Ithaca [N.Y.]: Cornell University Press, 1972.

MLA (9th ed.) Citation

American Association for the Advancement of Science, et al. UFO's--a Scientific Debate. Cornell University Press, 1972.