Paffenbarger, R. S., & Olsen, E. (1996). Lifefit: An effective exercise program for optimal health and a longer life. Human Kinectics.
Citace podle Chicago (17th ed.)Paffenbarger, Ralph S., a Eric Olsen. Lifefit: An Effective Exercise Program for Optimal Health and a Longer Life. Champaign, IL: Human Kinectics, 1996.
Citace podle MLA (9th ed.)Paffenbarger, Ralph S., a Eric Olsen. Lifefit: An Effective Exercise Program for Optimal Health and a Longer Life. Human Kinectics, 1996.
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