SHAUGHNESSY, J. J. <br/><br/>
Research Methods in Psychology 

 - 6th Ed. 
 - Boston,  Mcgraw- Hill,  2003. 
 - xvi,543p,: ill.; figure, picture and table.  Index & Reference.  25cm. 
<br/><br/><label>ISBN: </label>0-07-249446-8 
<br/><br/><label>Dewey Class. No.: </label>LECT 150.72 SHA