00753cam a22002411 4500 l 57000119 DLC 20260227111545.0 820224s1957 sz 000 0 eng l 57000119 (OCoLC)8187719 DLC OrU DLC premarc Z5814.T4 I6 International Labour Office. Library. Bibliography on vocational training. Geneva, 1957. iii, 39 p. 30 cm. Its Bibliographical contributions, no. 12 Vocational education Bibliography. Technical education Bibliography. International Labour Office. Library. Bibliographical contributions, no. 12. 36951 36951