Elhance , D.N. & Elhance, Veena <br/><br/>
Practical in problems Statistics 

 - New Delhi  Kitab Mahal  2004 
 - 623p. 
<br/><br/><label>ISBN: </label>81-225-0033-1 
<br/><br/><label>Dewey Class. No.: </label>519.5   Elh.P4