Das, N.G. <br/><br/>
Statistical methods  Statistical methods, 1, New Delhi : Tata Mc Graw-Hill Publishing Company, 2009 
N.G. Das 
 - New Delhi  Tata Mc Graw-Hill Publishing Company  2009 
<br/><br/><label>ISBN: </label>0-07-026350-7 
<br/><br/><label>Dewey Class. No.: </label>311