Cita APA (7th ed.)

Andrews, W. A. (1972). A guide to the study of freshwater ecology. Prentice-Hall, Inc.

Cita Chicago (17th ed.)

Andrews, William A. A Guide to the Study of Freshwater Ecology. Englewood Cliffs, N.J: Prentice-Hall, Inc, 1972.

Cita MLA (9th ed.)

Andrews, William A. A Guide to the Study of Freshwater Ecology. Prentice-Hall, Inc, 1972.