APA (7th ed.) Citation

Pennak, R. W. (1988). Collegiate dictionary of zoology. R.E. Krieger Pub. Co..

Chicago Style (17th ed.) Citation

Pennak, Robert W. Collegiate Dictionary of Zoology. Malabar, Fla.: R.E. Krieger Pub. Co., 1988.

MLA (8th ed.) Citation

Pennak, Robert W. Collegiate Dictionary of Zoology. R.E. Krieger Pub. Co., 1988.