APA (7. basım) Alıntı

Sagan, C. (1973). The cosmic connection: An extraterrestrial perspective. Dell.

Chicago Style (17. basım) Atıf

Sagan, Carl. The Cosmic Connection: An Extraterrestrial Perspective. New York: Dell, 1973.

MLA (9th ed.) Atıf

Sagan, Carl. The Cosmic Connection: An Extraterrestrial Perspective. Dell, 1973.