Gupta S P <br/><br/>
Statistical methods 

 - 16th 
 - New Delhi       Sultan Chand & Sons       1969 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>31052 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B28, K9-;K9;4