Stern, Catherine <br/><br/>
Children discover arithmetic  an introduction to structural arithmetic 
Catherine Stern and Margaret B. Stern. Illus. by Phillis Borea. Foreword by W. W. Sawyer. 
 - Rev. and enl. ed. 
 - New York  Harper & Row  [1971] 
 - xv, 412 p.  illus. (part col.)  22 cm. 
<br/><br/>Bibliography: p. 401-404. 
<br/><br/><label>LCCN: </label>74083624  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arithmetic--Study and teaching.
<br/><br/><label>LC Class. No.: </label>QA135  / .S84 1971 
<br/><br/><label>Dewey Class. No.: </label>372.7/2