Cowell, Hailey A. <br/><br/>
Public Health in the 21st Century : Physical Activity Guidelines for Americans and a Review of Scientific Literature Used 
Cowell, Hailey A. 
 -  Nova Science Publishers, Incorporated  2011 
 - On-campus e-Book by ebrary under Digital Library Program of Higher Education Commission (HEC) of Pakistan 
<br/><br/><label>ISBN: </label>9781617611544     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine