Gupta,  S. P. & Gupta M.P. <br/><br/>
Business Statistics 

 - New Delhi  Sultan Chand & Sons  2013 
 - 756p. 
<br/><br/><label>ISBN: </label>978-81-8054-645-8 
<br/><br/><label>Dewey Class. No.: </label>519.       Gup.Q3