Admiralty list of radio signals. NP285 Global maritime distress and safety system (GMDSS) / Vol. 5,
Admiralty list of radio signals. NP285 Vol. 5, Global maritime distress and safety system (GMDSS) /
Hydrographic Office.
- xxi, 488 pages : color illustration, tables, maps ; 30 cm
9780707747309,
Aids to navigation
Signals and signaling
Radio in navigation
623.888
9780707747309,
Aids to navigation
Signals and signaling
Radio in navigation
623.888