Cita APA

Needham, J. G., & Needham, P. R. (1974). A guide to the study of fresh-water biology (5a. ed.). San Francisco, Calif: Holden-Day.

Citación estilo Chicago

Needham, James G., y Paul R. Needham. A Guide to the Study of Fresh-water Biology. 5a. ed. San Francisco, Calif: Holden-Day, 1974.

Cita MLA

Needham, James G., y Paul R. Needham. A Guide to the Study of Fresh-water Biology. 5a. ed. San Francisco, Calif: Holden-Day, 1974.