Henry Nelson B <br/><br/>
Teaching of arithmetic 

 -  1951 
 - Fiftieth yearbook of teh national society for teh study of education; 2 .
<br/><br/><label>Standard No.: </label>86,202 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T:3:B, J1