Metcalf, David H. The economics of vacational training : past evidence and future c onsiderations / by Davi H. Metcalf. - Washington : International Bank for Reconstruction and Developmen t, 1985. - 150 p. : ill. ; 27 cm. - World Bank staff working papers ; no. 713 . Includes bibliographical references (p. 143-150). Subjects--Topical Terms: Occupatioonal training--Developing countries.Vacational education--Developing countries.