APA引文

ebrary, Inc, & Cowell, H. A. (2011). Physical activity guidelines for Americans and a review of scientific literature used. Nova Science Publishers.

Chicago Style (17th ed.) Citation

ebrary, Inc, and Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Hauppauge, N.Y.: Nova Science Publishers, 2011.

MLA引文

ebrary, Inc, and Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Nova Science Publishers, 2011.