APA (7th ed.) Zitazioa

Hartshorn, T. A. (2004). Economic geography. Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Hartshorn, Truman A. Economic Geography. New Delhi: Prentice-Hall, 2004.

MLA (9th ed.) Zitazioa

Hartshorn, Truman A. Economic Geography. Prentice-Hall, 2004.