References
^ Facility Design and Management for Health, Fitness, Physical Activity, Recreation, and Sports Facility Development (2005, Spiral) ISBN 9781571675651 (revised May 2015)^ Sawyer, Thomas H. (2014). Facility Design and Management for Health, Fitness, Physical Activity, Recreation, and Sports Facility Development, Sagamore Pub Llc. BiggerBooks. ISBN 9781571675651 (revised Feb 2024)
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