Kothari, C R. <br/><br/>
Quantitative techniques. 

 - 3rd ed. 
 - Delhi :  Vikas Publishing HousePvt td,  1978. 
 - xv, 596 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0706987454 
<br/><br/><label>Dewey Class. No.: </label>68.403 KOT