APA (7th ed.) Zitazioa

Gopsill, G., & Bessley, F. (1964). Practical geography: Exercises with modles and improvised equipment. Macmillan.

Chicago Style (17th ed.) Zitazioa

Gopsill, G.H, eta Frank Bessley. Practical Geography: Exercises with Modles and Improvised Equipment. London: Macmillan, 1964.

MLA (9th ed.) Zitazioa

Gopsill, G.H, eta Frank Bessley. Practical Geography: Exercises with Modles and Improvised Equipment. Macmillan, 1964.