Cita APA (7a ed.)

Wallace, H. R., & Masters, L. A. (2006). Personal development for life and work (9th ed.). Thomson/South-Western.

Cita Chicago Style (17a ed.)

Wallace, Harold R., y L. Ann Masters. Personal Development for Life and Work. 9th ed. Ohio: Thomson/South-Western, 2006.

Cita MLA (8a ed.)

Wallace, Harold R., y L. Ann Masters. Personal Development for Life and Work. 9th ed. Thomson/South-Western, 2006.