Citazione Stile APA (7a Edizione)
ebrary, Inc, & Cowell, H. A. (2011). Physical activity guidelines for Americans and a review of scientific literature used. Nova Science Publishers.
Citazione stile Chigago Style (17a edizione)
ebrary, Inc, e Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Hauppauge, N.Y.: Nova Science Publishers, 2011.
Citatione MLA (9a ed.)
ebrary, Inc, e Hailey A. Cowell. Physical Activity Guidelines for Americans and a Review of Scientific Literature Used. Nova Science Publishers, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.