TY - BOOK ED - International Labour Office, Geneva. ED - International Labour Conference TI - The minimum requirement of professional capacity in the case of capt ains, navigating and engineer officers in charge of watches on board me rchant ships : : fourth item on the agenda PY - 1929/// CY - Geneva : PB - International Labour Office, KW - Ships KW - Manning KW - Maritime law N1 - At head of title: First discussion. International Labour Conference. Thirteenth session. Geneva, 1929 ER -