APA (7th ed.) Zitazioa

Pettersson, H. (1969). The ocean floor. Hafner.

Chicago Style (17th ed.) Zitazioa

Pettersson, Hans. The Ocean Floor. New York: Hafner, 1969.

MLA (9th ed.) Zitazioa

Pettersson, Hans. The Ocean Floor. Hafner, 1969.