TY  - BOOK
TI  - Admiralty list of radio signals volume 1, part 1 : maritime radio stations: Europe, Africa and Asia (excluding the Far East)
U1  - M 623.89 Ad6 2013 
PB  - The United Kingdom Hydrographic Office.
KW  - Radio in navigation
N1  - 600 Technology (App Sciences)
ER  -