APA (7th ed.) Citation

Keeton, W. T. (1967). Biological science ([1st ed.].). Norton.

Chicago Style (17th ed.) Citation

Keeton, William T. Biological Science. [1st ed.]. New York: Norton, 1967.

MLA (9th ed.) Citation

Keeton, William T. Biological Science. [1st ed.]. Norton, 1967.