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

 - New Delhi  Universal book Stall  1993 
 - 701p. 
<br/><br/><label>ISBN: </label>81 85461 71 6 
<br/><br/><label>Dewey Class. No.: </label>519.5      Yul. N3