Jackson, Sherri L. <br/><br/>
Research methods and statistics: a critical thinking approach. 

 - 2nd 
 -  Thomson  2006 
<br/><br/><label>ISBN: </label>0-534556604 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public Health 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 950 J 2006