APA (7th ed.) Citation

Ryan, J. (2012). Heavyweight Boxing in the 1970s: The Great Fighters and Rivalries.

Chicago Style (17th ed.) Citation

Ryan, Joe. Heavyweight Boxing in the 1970s: The Great Fighters and Rivalries. 2012.

MLA (9th ed.) Citation

Ryan, Joe. Heavyweight Boxing in the 1970s: The Great Fighters and Rivalries. 2012.

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