SpringerLink (Online service), Delhey, J., & Brockmann, H. (2013). Human happiness and the pursuit of maximization: Is more always better? Springer Netherlands.
Chicago-referens (17:e uppl.)SpringerLink (Online service), Jan Delhey, och Hilke Brockmann. Human Happiness and the Pursuit of Maximization: Is More Always Better? Dordrecht: Springer Netherlands, 2013.
MLA-referens (8:e uppl.)SpringerLink (Online service), et al. Human Happiness and the Pursuit of Maximization: Is More Always Better? Springer Netherlands, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.