Gravetter, Frederick J <br/><br/>
Research methods for the behavioral sciences 

 - 3rd ed. 
 - United States of America  Wadsworth/Thomson Learning  2009 
 - xxi,614p.  PB  22cm. 
<br/><br/> including index 
<br/><br/><label>ISBN: </label>9780495509837 
<br/><br/><label>Dewey Class. No.: </label>150.72  / GRA