Education a nationwide cause :  documents of The First Congress of public Education , Sofia, May 12-13, 1980. 

 - Sofia  Sofia Press,  1980 
 - 73 p. ;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Congresses.--Bulgaria
<br/><br/><label>Dewey Class. No.: </label>370.094977