TY  - BOOK
ED  - Hydrographic Office. 
TI  - Admiralty list of radio signals. Volume 3, part 1, 1998/99 : : Radio weather services and navigational warnings / 
T2  - Admiralty charts and publication NP 283 (1). 
U1  - 623.8932 23
PY  - 1998///.
CY  - Taunton, Somerset : 
PB  - The Hydrographer of the Navy, 
KW  - Radio in navigation.
KW  - Aids to navigation.
KW  - Aids to navigation -- Lists.
ER  -