Kerlinger, Fred, N <br/><br/>
Foundations of behaviaoral research 

 - 2nd ed. 
 - Delhi  Surjeet Publication  1978 
 - 741 p. 
<br/><br/><label>ISBN: </label> RS60 
<br/><br/><label>Dewey Class. No.: </label>300.72 K457F