APA (7th ed.) Citation

Byl, J. (2008). Having a ball : stability ball games / John Byl: Stability ball games. Human Kinetics.

Chicago Style (17th ed.) Citation

Byl, John. Having a Ball : Stability Ball Games / John Byl: Stability Ball Games. Champaign, IL: Human Kinetics, 2008.

MLA (9th ed.) Citation

Byl, John. Having a Ball : Stability Ball Games / John Byl: Stability Ball Games. Human Kinetics, 2008.

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