United States. Hydrographic Office. (1922). List of lights with fog signals and visible time signals of Norway, Iceland, and Arctic Ocean: Volume V. Including uniform time system, radio time signals, radio weather bulletins, and radio compass stations of world; corrected to Oct. 21, 1922. GPO.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. List of Lights with Fog Signals and Visible Time Signals of Norway, Iceland, and Arctic Ocean: Volume V. Including Uniform Time System, Radio Time Signals, Radio Weather Bulletins, and Radio Compass Stations of World; Corrected to Oct. 21, 1922. [Washington]: GPO, 1922.
MLA (9th ed.) CitationUnited States. Hydrographic Office. List of Lights with Fog Signals and Visible Time Signals of Norway, Iceland, and Arctic Ocean: Volume V. Including Uniform Time System, Radio Time Signals, Radio Weather Bulletins, and Radio Compass Stations of World; Corrected to Oct. 21, 1922. GPO, 1922.