APA-viite (7. p.)

Pennak, R. . W. (1978). Freshwater invertebrates of the United States. Wiley.

Chicago-viite (17. p.)

Pennak, Robert W. Freshwater Invertebrates of the United States. New York: Wiley, 1978.

MLA-viite (9. p.)

Pennak, Robert W. Freshwater Invertebrates of the United States. Wiley, 1978.