00942cam a22002411 4500 l 29000142 DLC 20260227111532.0 790711s1929 sz i100 0 eng c l 29000142 (OCoLC)5160063 Library, U.S. Dept. of Labor OCl DLC premarc VK221 .I55 International Labour Office. The minimum requirement of professional capacity in the case of captain, navigating and engineer officers in charge of watches on board merchant ships. Fourth item on the agenda. Geneva, International labour office, 1929. 2 p. l., 107 p. 24 cm. At head of title: First discussion. International labour conference. Thirteenth session, Geneva, 1929. Ships Manning. Maritime law. International labor conference (13th : 1929 : Geneva) 35952 35952