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

 - 34 
 - New Delhi  Sultan Chand & Sons  2005 
 - 1463 
<br/><br/><label>LC Class. No.: </label>519.5  / GUP/STA 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP/STA