Gaya APA

BARNES, R, S, K., MANN, K, H. (1991). FUNDAMENALS OF AQUATIC ECOLOGY . LONDON: BLACKWEL PUBLISHING.

Gaya MLA

BARNES, R., S., K.., MANN, K., H.. "FUNDAMENALS OF AQUATIC ECOLOGY". LONDON: BLACKWEL PUBLISHING, 1991. Text.