Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.