APA (7th ed.) Zitazioa

Harcourt, H. M. (1974). Introduction to physical geography (2nd ed.). Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Zitazioa

Harcourt, Henry M. Introduction to Physical Geography. 2nd ed. New York: Harcourt Brace Jovanovich, 1974.

MLA (9th ed.) Zitazioa

Harcourt, Henry M. Introduction to Physical Geography. 2nd ed. Harcourt Brace Jovanovich, 1974.