References
- President's Council on Physical Fitness and Sports. Aqua Dynamics: Physical Conditioning Through Water Exercises. Washington, DC, US Government Printing Office
- American College of Sports Medicine: Position statement on the recommended quantity and quality of exercise for developing and maintaining fitness in healthy adults. Med Sci Sports 10: vii–x. Fall 1978
- McArdle WD, Katch FI: Nutrition. Weight Control. and Exercise. New York City, Houghton-Mifflin. 1977. pp 348–357
- Pollock ML, Wilmore JH. Fox SM: Health and Fitness Through Physical Activity. New York City. John Wiley and Sons. 1978, pp 131–158