TY  - BOOK
ED  - Great Britain. Hydrographic Office.
TI  - Admiralty List of Radio Signals, Volume 5 : : global maritime distress and safety system / 
SN  - 9780707747132
U1  - 623.89  23
PY  - 2021///
CY  - Taunton
PB  - United Kingdom Hydrographic Office
KW  - Radio Signals
KW  - Distress Communications
KW  - Safety System
ER  -