Wetherill, G. Barrie. <br/><br/>
Intermediate statistical methods / 
G. Barrie Wetherill. 
 - London :  Chapman and Hall,  c1981. 
 - xv, 390 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0412164507 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics.