APA (7th ed.) Citation

Zorn, F. (1982). Mars (1st American ed.). Knopf.

Chicago Style (17th ed.) Citation

Zorn, Fritz. Mars. 1st American ed. New York: Knopf, 1982.

MLA (9th ed.) Citation

Zorn, Fritz. Mars. 1st American ed. Knopf, 1982.

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