APA (7th ed.) Citation

Kraus, D., & Perkins, O. E. (1974). Concpts in modern biology. Cambridge Book Company.

Chicago Style (17th ed.) Citation

Kraus, David, and Otho E. Perkins. Concpts in Modern Biology. New York: Cambridge Book Company, 1974.

MLA (9th ed.) Citation

Kraus, David, and Otho E. Perkins. Concpts in Modern Biology. Cambridge Book Company, 1974.