(1)事务、通讯 1
目次 1
BUSINESS AND COMMUNICATION 11
(2)海运、载货、海上保险 11
INSURANCE 45
(3)造船、机械、电器、无线电 45
SHIPPING,STOWAGE,AND MARINE 45
SHIPBILDING,ENGINEERING, 91
ELECTRICITY AND RADIO 91
(4)航海、天文、气象 91
NAVIGATION,ASTRONOMY AND 111
METEOROLOGY 111
(5)其他 111