00379nam a22001217a 4500008004100000020001500041082001800056110004000074245004000114260005700154300001000211650003600221210610b           ||||| |||| 00| 0 eng d  a928011191600a344.047bI339  aInternational Maritime Organization10aCode of safety for diving systems /  aLondon: bInternational Maritime Organizationc1985.  a20 p. 0aDeep DivingxSafety Regulations