Cita APA

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

Citación estilo Chicago

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

Cita MLA

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