Swenson, Esther J. <br/><br/>
Teaching arithmetic to children. 
Esther J. Swenson 
 - New York:  Macmillan,  1968. 
 - x,482 p. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Dewey Class. No.: </label>372.7 SWT