Gravetter, Frederick J. <br/><br/>
Statistics for the behavioral sciences / 
Frederick J. Gravetter. 
 - 6th ed. 
 - [S.l.] :  Wadsworth Publishing Co Inc,  2003. 
 - 746 p. ;  25 cm. 
<br/><br/> Import.  Paperback. 
<br/><br/><label>ISBN: </label>0534622046 9780534622046 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GRA