TY  - BOOK
TI  - Admiralty list of radio signals, volume 2 : radio aids to navigation, satelite navigation systems, legal time, radio time signals and electronic posit
U1  - M 623.89 Ad6 2007 
PB  - The United Kingdom Hydrographic Office.
KW  - Radio in navigation
N1  - 600 Technology (App Sciences)
ER  -