APA (7th ed.) Zitazioa

(1978). Geomorphology: Present problems and future prospects. Oxford Univ. Pr..

Chicago Style (17th ed.) Zitazioa

Geomorphology: Present Problems and Future Prospects. London: Oxford Univ. Pr., 1978.

MLA (9th ed.) Zitazioa

Geomorphology: Present Problems and Future Prospects. Oxford Univ. Pr., 1978.