TY  - BOOK
TI  - Admiralty list of radio signals : : meteorological observation stations 
SN  - 9780707747064
U1  - 623.8932 
PY  - 2021///
CY  - United Kingdom : 
PB  - The United Kingdom Hydrographic Office , 
KW  - Radio Signals
KW  - Marine Navigation
ER  -