GUPTA (S C) & GUPTA (Indra). <br/><br/>
Practical statistics. 

 - Delhi  Himalaya Publishing House  1992 
 - 1066 
<br/><br/><label>ISBN: </label>81 7040 292 1 
<br/><br/><label>Dewey Class. No.: </label>519.5 GUPP