Elcholz, Robert E. <br/><br/>
Elementary school mathematics 
Robert E.Elcholz and Phares G. O'Daffer 
 - California:  Addison-Wesley Publishing Company,  1971. 
 - 356p. 
<br/><br/> Includes index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0201025450 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / EIE