Παραπομπή APA

Hardy, A. (1959). Open sea (2 Vols.): :v.2 fish and fisheries. Collins.

Παραπομπή Chicago Style

Hardy, Alister. Open Sea (2 Vols.): :v.2 Fish and Fisheries. London: Collins, 1959.

Παραπομπή MLA

Hardy, Alister. Open Sea (2 Vols.): :v.2 Fish and Fisheries. Collins, 1959.