APA-viite

Hoffman, G. L. (1967). Parasites of north American freshwater fishes.

Chicago-tyylinen lähdeviittaus

Hoffman, Glenn L. Parasites of North American Freshwater Fishes. University of California Press, Berkeley, 1967.

MLA-viite

Hoffman, Glenn L. Parasites of North American Freshwater Fishes. 1967.