Enrichment Mathematics for the grades 

 - Washington DC  National Council of Teachers of mathematics 
 - ix, 368p.  ill. 
 - Twenty-seventh year book .
<br/><br/> 2 copies 
<br/><br/><label>Subjects--Topical Terms: </label><br/><Mathematics-study and teaching>
<br/><br/><label>Dewey Class. No.: </label>372.7