Arora, P.N. <br/><br/>
Comprehensive statistical methods. 
P.N.Arora 
 - 4th rev. 
 - New Delhi  S.Chand & Company Ltd.  2012 
 - varying pa 
<br/><br/><label>ISBN: </label>9788121927765 
<br/><br/><label>Dewey Class. No.: </label>519.5  / AR-C