APA (7e ed.) Bronvermelding

Pennak, R. W. (1964). Collegiate dictionary of zoology. Ronald Press Co.

Chicago (17e ed.) Bronvermelding

Pennak, Robert W. Collegiate Dictionary of Zoology. New York: Ronald Press Co, 1964.

MLA (9e ed.) Bronvermelding

Pennak, Robert W. Collegiate Dictionary of Zoology. Ronald Press Co, 1964.