APA (7th ed.) Zitazioa

Beckinsale, R. P. (1966). Land, air and ocean (4a. ed.). Gerald Duckworth.

Chicago Style (17th ed.) Zitazioa

Beckinsale, R. P. Land, Air and Ocean. 4a. ed. Londres: Gerald Duckworth, 1966.

MLA (9th ed.) Zitazioa

Beckinsale, R. P. Land, Air and Ocean. 4a. ed. Gerald Duckworth, 1966.