ebrary, Inc, & Cowell, H. A. (2011). Physical activity guidelines for Americans and a review of scientific literature used. Nova Science Publishers.
Citace podle Chicago (17th ed.)ebrary, Inc, a Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Hauppauge, N.Y.: Nova Science Publishers, 2011.
Citace podle MLA (9th ed.)ebrary, Inc, a Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Nova Science Publishers, 2011.
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