United States. Hydrographic Office. (1925). List of lights with fog signals and visible time signals of west coast of Europe and Africa, Mediterranean Sea, Black Sea, and Sea of Azov: Volume III. Including uniform time system, radio time signals, radio weather bulletins, radio fog signals, and radio compass stations of world; corrected to Mar. 1, 1925. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. List of Lights with Fog Signals and Visible Time Signals of West Coast of Europe and Africa, Mediterranean Sea, Black Sea, and Sea of Azov: Volume III. Including Uniform Time System, Radio Time Signals, Radio Weather Bulletins, Radio Fog Signals, and Radio Compass Stations of World; Corrected to Mar. 1, 1925. [Washington]: GPO, 1925.
MLA (9th ed.) CitationUnited States. Hydrographic Office. List of Lights with Fog Signals and Visible Time Signals of West Coast of Europe and Africa, Mediterranean Sea, Black Sea, and Sea of Azov: Volume III. Including Uniform Time System, Radio Time Signals, Radio Weather Bulletins, Radio Fog Signals, and Radio Compass Stations of World; Corrected to Mar. 1, 1925. GPO, 1925.