Yule, G Udny <br/><br/>
Introduction to the theory of statistics 

 - 14th rev. ed. 
 - New Delhi  Universal book  1993 
 - xxiv, 701 p. 
<br/><br/><label>ISBN: </label> RS150 
<br/><br/><label>Dewey Class. No.: </label>519.5 Y91I