Developments in technical and vocational education : a comparative study. - Paris : United Nations ; 1979. - 143 p. : Ills., 24 cm. - Trends and issues in technical and vocational education . 336 336 ISBN: 92-3-101558-3 Subjects--Topical Terms: Technical education.Vocational education. Dewey Class. No.: 371.42 / U3d