APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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