Erdos, Renee F. <br/><br/>
Establishing an institution teaching by correspondence 
/ Renee F. Erdos 
 - Paris  The Unesco press  1975 
 - 58 p. 
<br/><br/><label>ISBN: </label>9231013076 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>374.4  / ERD