APA (7th ed.) Zitazioa

Holden, J., & Edited by Holden, J. (2017). An Introduction to Physical Geography and the Environment (4th ed.). Pearson.

Chicago Style (17th ed.) Zitazioa

Holden, Joseph, eta Joseph Edited by Holden. An Introduction to Physical Geography and the Environment. 4th ed. London.: Pearson, 2017.

MLA (9th ed.) Zitazioa

Holden, Joseph, eta Joseph Edited by Holden. An Introduction to Physical Geography and the Environment. 4th ed. Pearson, 2017.