APA (7th ed.) Citation

Duckworth, A. (2017). Grit: Why passion and resilience are the secrets to success. Vermilion.

Chicago Style (17th ed.) Citation

Duckworth, Angela. Grit: Why Passion and Resilience Are the Secrets to Success. London: Vermilion, 2017.

MLA (9th ed.) Citation

Duckworth, Angela. Grit: Why Passion and Resilience Are the Secrets to Success. Vermilion, 2017.

Warning: These citations may not always be 100% accurate.