APA (7th ed.) Citation

Johnson, G., & Maki, A. (2020). NFL heroes: The 100 greatest players of all time. Firefly Books.

Chicago Style (17th ed.) Citation

Johnson, George, and Allan Maki. NFL Heroes: The 100 Greatest Players of All Time. Richmond Hill, Ontario: Firefly Books, 2020.

MLA (9th ed.) Citation

Johnson, George, and Allan Maki. NFL Heroes: The 100 Greatest Players of All Time. Firefly Books, 2020.

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