Kerlinger, Fred N. <br/><br/>
Foundations of behavioral research / 
by Fred N. Kerlinger 
 - 2nd ed. 
 - Delhi:  Surjeet Publications,  2018. 
 - xx, 741p. 
<br/><br/><label>ISBN: </label>9788122904765 
<br/><br/><label>Dewey Class. No.: </label>SN1  / Q8