TY  - BOOK
TI  - Admiralty list of radio signals: : global maritime distress and safety system (GMDSS) 
SN  - 0707714796
U1  - 623.8932 
PY  - 2004///
CY  - United Kingdom : 
PB  - The United Kingdom Hydrographic Office, 
KW  - Radio Signals
KW  - Marine Navigation
N1  - Includes Index.
ER  -