Peterson, C. (2006). A Primer in positive psychology. Oxford University Press.
Cita Chicago (17th ed.)Peterson, Christopher. A Primer in Positive Psychology. Oxford: Oxford University Press, 2006.
Cita MLA (9th ed.)Peterson, Christopher. A Primer in Positive Psychology. Oxford University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.