Kristján Kristjánsson. (2013). Virtues and Vices in Positive Psychology (1.). Cambridge University Press.
Citazione stile Chigago Style (17a edizione)Kristján Kristjánsson. Virtues and Vices in Positive Psychology. 1. Cambridge University Press, 2013.
Citatione MLA (8a ed.)Kristján Kristjánsson. Virtues and Vices in Positive Psychology. 1. Cambridge University Press, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.