APA (7th ed.) Zitazioa

Holden, J. (2011). Physical geography: The basics. Routledge.

Chicago Style (17th ed.) Zitazioa

Holden, Joseph. Physical Geography: The Basics. London: Routledge, 2011.

MLA (9th ed.) Zitazioa

Holden, Joseph. Physical Geography: The Basics. Routledge, 2011.