Organization of pre-primary education :  research in comparative education. 

 - Geneva,  1961. 
 - International Bureau of Education. Publication ;  no. 230 .
 - Publication (International Bureau of Education) ;  no. 230 .
<br/><br/> At head of title: XXIVth International Conference on Public Education, Geneva, 1961. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>61066112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education, Preschool.
<br/><br/><label>LC Class. No.: </label>L10  / .I6952 no. 230 
<br/><br/><label>Dewey Class. No.: </label>372.218