Citazione Stile APA (7a Edizione)

Marx, M. H., & Cronan-Hillix, W. A. (1979). Systems and theories in psychology (Third edition.). McGraw-Hill Book.

Citazione stile Chigago Style (17a edizione)

Marx, Melvin Herman, e William Allen Cronan-Hillix. Systems and Theories in Psychology. Third edition. New York: McGraw-Hill Book, 1979.

Citatione MLA (9a ed.)

Marx, Melvin Herman, e William Allen Cronan-Hillix. Systems and Theories in Psychology. Third edition. McGraw-Hill Book, 1979.