APA (7e ed.) Bronvermelding

WHALEY, W. G. (1964). Principles of biology.-- 3rd ed. Harper and Row.

Chicago (17e ed.) Bronvermelding

WHALEY, W. Gordon. Principles of Biology.-- 3rd Ed. New York: Harper and Row, 1964.

MLA (9e ed.) Bronvermelding

WHALEY, W. Gordon. Principles of Biology.-- 3rd Ed. Harper and Row, 1964.