APA (7e ed.) Bronvermelding

Kristján Kristjánsson. (2013). Virtues and Vices in Positive Psychology (1.). Cambridge University Press.

Chicago (17e ed.) Bronvermelding

Kristján Kristjánsson. Virtues and Vices in Positive Psychology. 1. Cambridge University Press, 2013.

MLA (8e ed.) Bronvermelding

Kristján Kristjánsson. Virtues and Vices in Positive Psychology. 1. Cambridge University Press, 2013.

Let op: Deze citaties zijn niet altijd 100% accuraat.