Spitzer Herbert F. <br/><br/>
The teaching of arithmetic 
Herbert F. Spitzer 
 - Boston  Hougton Mifflin Company  c1948. 
 - viii, 397 p.  ill. 
<br/><br/> Includes indexes. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching.