Mathematics in our world 
Robert E. Eicholtz... et al. 
 - Menlo Park,CA  Addison-Wesley  c1978. 
 - 404 p. : ill. 
<br/><br/><label>ISBN: </label>0201098601 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)