Willerding, Margaret F. <br/><br/>
Elementary mathematics :  its structure and concepts / 
Margaret F. Willerding 
 - New York :  John Wiley ,  1970 
 - xv, 474p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / WIL-4