Shaughnessy, John J <br/><br/>
Research Methods in Psychology 

 - 4th ed. 
 - Boston  McGraw Hill  1997 
 - xvii, 524 P.  Illustration 
<br/><br/><label>ISBN: </label>0070572720 
<br/><br/><label>Dewey Class. No.: </label>150.72  / S31