APA (7th ed.) Citation

Kenk, R. (1970). Freshwater triclads (Turbellaria) of North America. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Kenk, Roman. Freshwater Triclads (Turbellaria) of North America. Washington, D.C.: Smithsonian Institution Press, 1970.

MLA (8th ed.) Citation

Kenk, Roman. Freshwater Triclads (Turbellaria) of North America. Smithsonian Institution Press, 1970.