Initiatives in education :  a world profile for 1971-1972 / 

 - Paris :  UNESCO;  IBE,  1972. 
 - 117 p.;  il., fot 
 - Studies and surveys in comparative education .
<br/><br/><label>ISBN: </label>9231010034 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.014 (100) =20 INI.