APA (7th ed.) Citation

Snyder, C. R., Lopez, S. J., & Pedrotti, J. T. (2011). Positive psychology: The scientific and practical explorations of human strengths (2. ed.). SAGE.

Chicago Style (17th ed.) Citation

Snyder, C. R., Shane J. Lopez, and Jennifer Teramoto Pedrotti. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. 2. ed. Thousand Oaks, Calif. [u.a.]: SAGE, 2011.

MLA (9th ed.) Citation

Snyder, C. R., et al. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. 2. ed. SAGE, 2011.