Schaaf, William Leonard, 1898-  Schaaf, William Leonard, 1898- <br/><br/>
Basic concepts of elementary mathematics 
[by] William L. Schaaf. 
 - 2d ed. 
 - New York,  J. Wiley  [1965] 
<br/><br/> First published in 1960. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>64025883 //r89 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.
<br/><br/><label>LC Class. No.: </label>QA39  / .S23 1965 
<br/><br/><label>Dewey Class. No.: </label>510