Terrestrial magnetism. : Magnetic declination in the United States for January 1, 1920 / by Daniel L. Hazard.
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Format: | Government Document Book |
Language: | English |
Published: |
Washington :
U.S. Govt. Print. Off,
1922.
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Series: | Special publication (U.S. Coast and Geodetic Survey) ;
no. 90. Serial (U.S. Coast and Geodetic Survey) ; 215. |
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