Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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