Anand, P. Happiness Explained. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Anand, Paul. Happiness Explained. Oxford University Press.
Lua MLA (9ú heag.)Anand, Paul. Happiness Explained. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.