Cita APA (7a ed.)
Beck, R. C. (2004). Motivation: Theories and principles (5th ed.). Pearson/Prentice Hall.
Cita Chicago Style (17a ed.)
Beck, Robert C. Motivation: Theories and Principles. 5th ed. Upper Saddle River: Pearson/Prentice Hall, 2004.
Cita MLA (9a ed.)
Beck, Robert C. Motivation: Theories and Principles. 5th ed. Pearson/Prentice Hall, 2004.
Precaución: Estas citas no son 100% exactas.