Kerlinger, Fred N. <br/><br/>
Foundations of behavioural research. 

 - 2nd  ed. 
 - New York :  Holt, Rinhart and Winston. 
 - xx,741  p. ;    cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Behavioural research.