APA (7th ed.) Citation

Keeton, W. T. (1972). Biological science (2nd ed.). Norton.

Chicago Style (17th ed.) Citation

Keeton, William T. Biological Science. 2nd ed. New York: Norton, 1972.

MLA (9th ed.) Citation

Keeton, William T. Biological Science. 2nd ed. Norton, 1972.

Warning: These citations may not always be 100% accurate.