Cozby, Paul C. <br/><br/>
Methods in behavioral research 

 - 7th ed. 
 - New Delhi  Mc Graw Hill  2001 
 - ix, 370 p. 
<br/><br/><label>ISBN: </label>767410237 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Dewey Class. No.: </label>F 2434