Gupta, C.B.  <br/><br/>
An Introduction to Statistical Methods 
/ by C.B. Gupta and Vijay Gupta 
 - 23rd rev. ed. 
 - New Delhi:  Vikas Publishing House Pvt Ltd.,  2012. 
 - x, 829p.; 21 cm. 
<br/><br/><label>ISBN: </label>9788125916543 
<br/><br/><label>Dewey Class. No.: </label>519.5  / GUP/A