Innovative methods in technological eduation 

 - Paris :  UNESCO,  1989. 
 - 182 p. :  cuadr. 
 - Studies in engineering education ;  13. .
<br/><br/><label>ISBN: </label>9231026372 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>377: 62 =20 INN No. 13