Walker, Helen M. <br/><br/>
Mathematics essential for elementary statistics :  a self-teaching manual / 
Helen M. Walker 
 - New York :  Holt, Rinehart & Winston ,  1951 
 - 382p. :  ill. ;  13 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Manuals<br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>510  / WAL