Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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