APA (7th ed.) Zitazioa

Buckle, C. (1978). Landforms in Africa. Longman.

Chicago Style (17th ed.) Zitazioa

Buckle, Colin. Landforms in Africa. England: Longman, 1978.

MLA (9th ed.) Zitazioa

Buckle, Colin. Landforms in Africa. Longman, 1978.