Cozby, Paul C. <br/><br/>
Methods in behavioral research / 
Paul C. Cozby, Scott C. Bates. 
 - 13th ed. 
 - xix, 428 p. :  col. ill. ;  23 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781260084207 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.<br/>Social sciences--Research--Methodology.