Kerlinger, Fred N. <br/><br/>
Foundations of Behavioral Research 

 - 2nd ed. 
 - New Delhi:   Surjeet Publications,   2014. 
 -  ill. ;  24cm. 
<br/><br/><label>ISBN: </label>9788122904765 
<br/><br/><label>Dewey Class. No.: </label>300.72  / KER/F