Erricker,B.C. <br/><br/>
Elementary statistics. 

 - 2nd  ed. 
 - london :  The english university press,  1970. 
 - 318  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>economics.