Bok, D. C. (2010). The politics of happiness: What government can learn from the new research on well-being. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Bok, Derek Curtis. The Politics of Happiness: What Government Can Learn from the New Research on Well-being. Princeton: Princeton University Press, 2010.
Lua MLA (9ú heag.)Bok, Derek Curtis. The Politics of Happiness: What Government Can Learn from the New Research on Well-being. Princeton University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.