Moerton, Robert Lee,    1889 - <br/><br/>
Teaching arithmetic in the elementary school ... /    
by Robert Le M orton 
 - New York :   Silver Burdett company ,   1937 - 39 
 - 3 v p. :    front., ill., plates, diagrs ;    21 cm. 
<br/><br/>  Selected references at end of each chapter 
<br/><br/>I. Primary grades. - II. Intermediate grades. - III. Upper grades 
<br/><br/><label>Dewey Class. No.: </label>372.72