The teaching of arithmetic. 
Edited by Nelson B. Henry. 
 - Chicago  Distributed by the University of Chicago Press  1951. 
 - xii, 308, lxx p.  23 cm. 
 - Yearbook of the National Society for the Study of Education, 50th, pt. 2 .
 - National Society for the the Study of Education.  Yearbook  50th, pt. 2. .
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>51009871  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching.
<br/><br/><label>LC Class. No.: </label>LB5  / .N25 50th, pt. 2 
<br/><br/><label>Dewey Class. No.: </label>370.62