British Board of Trade. Excepts from the international code of signals with special navy flags and Pennants.
Chicago-tyylinen lähdeviittausBritish Board of Trade. Excepts from the International Code of Signals with Special Navy Flags and Pennants. New York Cornell maritime press 1944.
MLA-viiteBritish Board of Trade. Excepts from the International Code of Signals with Special Navy Flags and Pennants.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.