Gupta,S.P. <br/><br/>
Practical Statistics 

 - 7th /   1993. 
 - Delhi:  S.Chand & Co,  1993. 
 - 563p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics, Statistics., 
<br/><br/><label>Dewey Class. No.: </label>310