Fehr, Howard .F <br/><br/>
Teaching modern mathematics in the elementary school 

 - 2nd Ed 
 - London  Addison-Wesley Publishing Company  1972 
 - xviii,515  Hb  24 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>372.7