APA aipamena

Snyder, C. R., & Lopez, S. J. (2007). Positive psychology: The science and Practical and explorations of human strengths. Sage Publications.

Chicago Style aipamena

Snyder, C. R., and Shane J. Lopez. Positive Psychology: The Science and Practical and Explorations of Human Strengths. London: Sage Publications, 2007.

MLA aipamena

Snyder, C. R., and Shane J. Lopez. Positive Psychology: The Science and Practical and Explorations of Human Strengths. Sage Publications, 2007.