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

 - 8th rev. ed. 
 - New Delhi  S. Chand  1996 
 - vii,563 p. 
<br/><br/><label>ISBN: </label>8121906245 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP