Cita APA (7a ed.)

Snyder, C. R., & Lopez, S. J. (2002). Handbook of positive psychology. Oxford University Press.

Cita Chicago Style (17a ed.)

Snyder, C. R., y Shane J. Lopez. Handbook of Positive Psychology. Oxford [England] ; New York: Oxford University Press, 2002.

Cita MLA (8a ed.)

Snyder, C. R., y Shane J. Lopez. Handbook of Positive Psychology. Oxford University Press, 2002.