Gaya APA

Webber, H, H., Thurman, H, V. (1991). Marine biology (ed. 2). New York: HarperCollins Publshers.

Gaya MLA

Webber, Herber, H.., Thurman, Harold, V.. "Marine biology". ed. 2 New York: HarperCollins Publshers, 1991. Text.