Wetherill, G. Barrie. <br/><br/>
Elementary statistical methods / 
G. Barrie Wetherill. 
 - 2nd ed. 
 - London :  Chapman and Hall ,  c1972. 
 - xiv, 346 p. :  ill. ;  24 cm. 
<br/><br/> Distributed in the U.S.A. by Barnes & Noble. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0412113708 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics.
<br/><br/><label>Dewey Class. No.: </label>519.5  / WEE 1972