APA (7th ed.) Citation

Patrick, R. (2021). A Statistical History of Pro Football: Players, Teams and Concepts.

Chicago Style (17th ed.) Citation

Patrick, Rupert. A Statistical History of Pro Football: Players, Teams and Concepts. 2021.

MLA (9th ed.) Citation

Patrick, Rupert. A Statistical History of Pro Football: Players, Teams and Concepts. 2021.

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