Erdos R F <br/><br/>
Estabilishing an institution teaching by correspondence 

 - Paris  UNESCO         1975 
 - 59p.  cm. 
<br/><br/><label>Standard No.: </label>86,975 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>T:4,8d:b,2, L5