Gravetter. J. Frederick.  <br/><br/>
Research Methods for the Behavioral Sciences   English  
Gravetter. J. Frederick.  
 - London: 
 - 618p:  ill:  22cm. 
<br/><br/><label>ISBN: </label>9781111342265 
<br/><br/><label>Dewey Class. No.: </label>001.42  / GRA