http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Admiralty list of radio signals volumen 6, part 5 NP 286 (5)
Pilot services, vessel traffic services and port operations Americas and Antarctica
xxxiv, 378 páginas : ilustraciones ; 30 cm.
Directions for updating this volume -- Useful contacts within the united kingdom hydrographic office -- General information -- Admiralty list of radio signals -report -- table of transmitting frequencies in the VHF maritime mobile band -- IMO Standard ship reporting system -- Phonetic Alphabet and figure code -- Explanatory notes of stations and service details