APA (7th ed.) Citation

Dumas, A., & Dumas, J. (2014). Fitness boxing: The ultimate workout / Andy Dumas and Jamie Dumas. The Crowood Press Ltd.

Chicago Style (17th ed.) Citation

Dumas, Andy, and Jamie Dumas. Fitness Boxing: The Ultimate Workout / Andy Dumas and Jamie Dumas. Wilthshire, UK: The Crowood Press Ltd, 2014.

MLA (9th ed.) Citation

Dumas, Andy, and Jamie Dumas. Fitness Boxing: The Ultimate Workout / Andy Dumas and Jamie Dumas. The Crowood Press Ltd, 2014.

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