Schultz, D. P., & Schultz, S. E. (2009). Theories of personality (9th ed.). Thomson/Wadsworth.
Cita Chicago Style (17a ed.)Schultz, Duane P., y Sydney Ellen Schultz. Theories of Personality. 9th ed. Australia: Thomson/Wadsworth, 2009.
Cita MLA (9a ed.)Schultz, Duane P., y Sydney Ellen Schultz. Theories of Personality. 9th ed. Thomson/Wadsworth, 2009.
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