APA (7th ed.) Citation

Kleist, R. (2021). Knock out!: The true story of Emile Griffith. SelfMadeHero.

Chicago Style (17th ed.) Citation

Kleist, Reinhard. Knock Out!: The True Story of Emile Griffith. London: SelfMadeHero, 2021.

MLA (9th ed.) Citation

Kleist, Reinhard. Knock Out!: The True Story of Emile Griffith. SelfMadeHero, 2021.

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