Cita APA

Snyder, C., & Lopez, S. J. (2007). Positive psychology: The scientific and practical explorations of human strengths (1a edición.). Thousand Oaks, CA: SAGE.

Citación estilo Chicago

Snyder, C.R., and Shane J. Lopez. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. 1a edición. Thousand Oaks, CA: SAGE, 2007.

Cita MLA

Snyder, C.R., and Shane J. Lopez. Positive Psychology: The Scientific and Practical Explorations of Human Strengths. 1a edición. Thousand Oaks, CA: SAGE, 2007.