APA (7th ed.) Citation

Sachs, M. (1980). The UFO encyclopedia. Putnam.

Chicago Style (17th ed.) Citation

Sachs, Margaret. The UFO Encyclopedia. New York: Putnam, 1980.

MLA (9th ed.) Citation

Sachs, Margaret. The UFO Encyclopedia. Putnam, 1980.

Warning: These citations may not always be 100% accurate.