APA (7th ed.) Zitazioa

(1997). Fundamintals of the Physical environment. Routledge.

Chicago Style (17th ed.) Zitazioa

Fundamintals of the Physical Environment. London: Routledge: Routledge, 1997.

MLA (9th ed.) Zitazioa

Fundamintals of the Physical Environment. Routledge, 1997.