Gupta, C B <br/><br/>
An Introduction to statistical methods 
Gupta, C B 
 - 23rd rev.ed. 
 - Delhi  Vikas Publishing House  2008 
 - 829p. 
<br/><br/><label>ISBN: </label>81-259-1654-7 
<br/><br/><label>Subjects--Index Terms: </label>Statistics 
<br/><br/><label>Dewey Class. No.: </label>519  / GUP