006040000a22001690004500003000900000005001700009110008800026245011600114020001800230264004900248490003900297300000900336041000800345650001900353700003000372700003200402PH-MaWHO20241108112318.0 aJoint ILO/WHO Committee on the Hygiene of Seafarers. Session (1st : 1949 : Geneva). aJoint ILO/WHO Committee on the Hygiene of Seafarers : report on the first session, Geneva, 12-14 December 1949. a92-4-120020-0 aGeneva : bWorld Health Organization,c1950. a(WHO technical report series ; 20) a10p. aeng aNaval medicine aWorld Health Organization aInternational Labour Office