United States. Hydrographic Office. (1895). Contributions to terrestrial magnetism, variation of compass, as observed at 50 of principal maritime stations from earliest times to present, together with equations for each station, from which values may be predicted and annual rates of change found. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Hydrographic Office. Contributions to Terrestrial Magnetism, Variation of Compass, as Observed at 50 of Principal Maritime Stations from Earliest Times to Present, Together with Equations for Each Station, from Which Values May Be Predicted and Annual Rates of Change Found. [Place of publication not identified]: U.S. Government Printing Office, 1895.
MLA (9th ed.) CitationUnited States. Hydrographic Office. Contributions to Terrestrial Magnetism, Variation of Compass, as Observed at 50 of Principal Maritime Stations from Earliest Times to Present, Together with Equations for Each Station, from Which Values May Be Predicted and Annual Rates of Change Found. U.S. Government Printing Office, 1895.