Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.