APA

Guttman B. S., . (1971). Biological principles. New York: W. A. Benjamin, inc.

Chicago

Guttman Burton S, . 1971. Biological principles. New York: W. A. Benjamin, inc.

Harvard

Guttman B. S., . (1971). Biological principles. New York: W. A. Benjamin, inc.

MLA

Guttman Burton S, . Biological principles. New York: W. A. Benjamin, inc. 1971.