APA (7e ed.) Bronvermelding
Duckworth, A. (2017). Grit: Why Passion and Resilience are the Secrets to Success. Vermilion.
Chicago (17e ed.) Bronvermelding
Duckworth, Angela. Grit: Why Passion and Resilience Are the Secrets to Success. London: Vermilion, 2017.
MLA (9e ed.) Bronvermelding
Duckworth, Angela. Grit: Why Passion and Resilience Are the Secrets to Success. Vermilion, 2017.
Let op: Deze citaties zijn niet altijd 100% accuraat.