Das, N G <br/><br/>
Statistical methods, Vol.1 ; 
N G Das 
 - Chennai :  McGraw Hill Education (India) private Limited,  2009. 
 - ix, 449 p. : 
<br/><br/><label>ISBN: </label>978-0-07-026350-5 
<br/><br/><label>Dewey Class. No.: </label>519.5  / DAS/S