Geuther, Edgar <br/><br/>
Training apprentices in industrial training workshops :  German Democratic Republic / 
Edgar Geuther. 
 - Paris :  UNESCO,  1986. 
 - 120 p. ;  tabl. 
 - Studies in technical and vocational education ;  23. .
<br/><br/> Incluye anexos. 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>377.35 (430.2) =20 GEU No.23.