Developments in technical and vocational education :  a comparative study. 

 - Paris :  UNESCO,  1978. 
 - 143 p. ;  il., lamns. 
 - Trends and issues in technical and vocational education ;  1. .
<br/><br/><label>ISBN: </label>9231015583 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>377 =20 EVO Vol.1.