APA (7th ed.) Zitazioa

Hardy, A. C. (1959). The open sea: Its natural history. Collins.

Chicago Style (17th ed.) Zitazioa

Hardy, Alister Clavering. The Open Sea: Its Natural History. Londres: Collins, 1959.

MLA (9th ed.) Zitazioa

Hardy, Alister Clavering. The Open Sea: Its Natural History. Collins, 1959.