APA (7th ed.) Zitazioa

Hartshorn, T. A., & Alexander , J. W. (2004). Economic geography (3rd ed.). Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Hartshorn, Truman A., eta John W. Alexander. Economic Geography. 3rd ed. New Delhi: Prentice-Hall, 2004.

MLA (9th ed.) Zitazioa

Hartshorn, Truman A., eta John W. Alexander. Economic Geography. 3rd ed. Prentice-Hall, 2004.