APA (7th ed.) Citation

Winter, J., & Roca, F. (2007). Muhammad Ali: Champion of the world. Schwartz & Wade Books.

Chicago Style (17th ed.) Citation

Winter, Jonah, and François Roca. Muhammad Ali: Champion of the World. New York: Schwartz & Wade Books, 2007.

MLA (8th ed.) Citation

Winter, Jonah, and François Roca. Muhammad Ali: Champion of the World. Schwartz & Wade Books, 2007.

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