Gupta, C. B. <br/><br/>
Introduction to statistical methods 

 - 7th ed 
 - Delhi  Vikas Publishing House Pvt. Ltd.  1973 
 - 712p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Statistical theory 
<br/><br/><label>Dewey Class. No.: </label>311