APA (7th ed.) Zitazioa

STRAHLER, A. N. (1965). Physical geography. Wiley.

Chicago Style (17th ed.) Zitazioa

STRAHLER, Arthur N. Physical Geography. New York: Wiley, 1965.

MLA (9th ed.) Zitazioa

STRAHLER, Arthur N. Physical Geography. Wiley, 1965.