Kluczynski, Jan <br/><br/>
Trends of educational policy in socialist countries / 
Jan Kluczynski. 
 - Paris :  UNESCO,  1980. 
 - 54 p. 
 - Reports and studies on educational policy and planning; S. .
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.014.5 (4) =20 KLU.