Citazione Stile APA (7a Edizione)

Villee, C. A., Walker, W. F. J., & Barnes, R. D. (1979). Introduction to animal biology. W. B. Saunders.

Citazione stile Chigago Style (17a edizione)

Villee, Claude A., Warren F. Jr Walker, e Robert D. Barnes. Introduction to Animal Biology. Philadelphia: W. B. Saunders, 1979.

Citatione MLA (9a ed.)

Villee, Claude A., et al. Introduction to Animal Biology. W. B. Saunders, 1979.