00428nam a22001337a 4500 11972 11972 210908b 2020 ||||| |||| 00| 0 eng d 9780707744995 623.8 UKH UK Hydrographic Office Admiralty list of radio signals : maritime radio stations ( the Americas, far east and oceania) United Kingdom UK Hydrographic Office 2020 xviii,417p. BK 0 0 ddc 0 623_800000000000000_UKH 0 NFIC 14455 MU MU GEN 2021-09-08 623.8 UKH MPC6418 2025-03-17 BK Column - 2