Robert  L. Swain <br/><br/>
Understanding arithmetic 

 - New York  Holt Rinehart & Winson  1957 
 - 268p 
<br/><br/>Robert  L. Swain: Understanding arithmetic.  New York.  Holt Rinehart & Winson, 1957. 28245-0117--(513SWA)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>28245-0117 
<br/><br/><label>Dewey Class. No.: </label>513  / SWA