Cozby, Paul C. <br/><br/>
Methods in behavioral research / 
Paul C. Cozby. 
 - 1th  ed. 
 - Boston :  McGraw-Hill,  2009. 
 - xvii, 403  p. 
<br/><br/><label>ISBN: </label>0071281029 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Research--Methodology.<br/>Social science--Research--Methodology.