Bouwsma, Ward D. <br/><br/>
Basic mathematics for elementary teachers 
[by] Ward D. Bouwsma, Clyde G. Corle [and] Davis F. Clemson, Jr. 
 - vii, 342 p.  illus.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Foundations.
<br/><br/><label>Dewey Class. No.: </label>511