WILDFRID,D. <br/><br/>
Introduction Statistical Analysis 

 - 4th Ed. 
 - london  Mc Graw Hill,  1983 
 - xv,678p.:ill.  index  23cm. 
<br/><br/><label>ISBN: </label>0070170738 
<br/><br/><label>Dewey Class. No.: </label>519 DIX