Mathematics in primary education :  learning of mathematics by young children / 
prepared by the International Study Group for Mathematics Learning, Palo Alto, California ; and compiled by Z. P. Dienes ; and published with the permission of Unesco. 
 - Hamburg :  Unesco Institute for Education,  1966. 
 - International studies in education .
<br/><br/>Bibliography: p. 143-164. 
<br/><br/><label>LCCN: </label>cn 78009136 
<br/><br/><label>Nat. Bib. No.: </label>C78-9136-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics -- Study and teaching (Primary)--Mathematics -- Study and teaching (Primary)<br/>Mathematiques -- Etude et enseignement (Primaire)--Mathematiques -- Etude et enseignement (Primaire)
<br/><br/><label>Dewey Class. No.: </label>372.7