Cita APA (7th ed.)

Wetzel, R. G. (1975). Limnology: Lake and River Ecosystems (2nd ed.). Academic Pres.

Cita Chicago (17th ed.)

Wetzel, Robert G. Limnology: Lake and River Ecosystems. 2nd ed. California: Academic Pres, 1975.

Cita MLA (9th ed.)

Wetzel, Robert G. Limnology: Lake and River Ecosystems. 2nd ed. Academic Pres, 1975.