APA (7th ed.) Citation

Douglas, U. (1969). The phenomena of flying saucers and spatial people. Exposition Press.

Chicago Style (17th ed.) Citation

Douglas, Ulysee. The Phenomena of Flying Saucers and Spatial People. New York: Exposition Press, 1969.

MLA (9th ed.) Citation

Douglas, Ulysee. The Phenomena of Flying Saucers and Spatial People. Exposition Press, 1969.