H., W., H., V., T., H.(1991).Marine biology / Herbert H. Webber, Harold V. Thurman (Ed.ke-2).New York:Harper Collins Publishers.
Gaya MLA
Webber, Herbert, H.., Thurman, Harold, V.."Marine biology / Herbert H. Webber, Harold V. Thurman".Ed.ke-2New York:Harper Collins Publishers,1991.Textbook.