Oxford handbook of positive psychology

MLA

Snyder, C. R. and Shane J. Lopez. Oxford handbook of positive psychology. Second edition. New York ; Oxford : Oxford University Press, 2009.

APA

Snyder, C. & Lopez, S. (2009). Oxford handbook of positive psychology. Second edition. New York ; Oxford : Oxford University Press.

Chicago

Snyder, C. R. and Shane J. Lopez. Oxford handbook of positive psychology. Second edition. New York ; Oxford : Oxford University Press, 2009.