Snyder, C. R., Lopez, S. J., & Pedrotti, J. T. (2011). Positive psychology: The scientific and practical explorations of human strengths (Second edition.). SAGE.
Citace podle Chicago (17th ed.)Snyder, C. R., Shane J. Lopez, a Jennifer Teramoto Pedrotti. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. Second edition. Los Angeles: SAGE, 2011.
Citace podle MLA (9th ed.)Snyder, C. R., et al. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. Second edition. SAGE, 2011.
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