Peterson, C. (2006). A Primer in positive psychology. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Peterson, Christopher. A Primer in Positive Psychology. Oxford: Oxford University Press, 2006.
Lua MLA (9ú heag.)Peterson, Christopher. A Primer in Positive Psychology. Oxford University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.