Hazard, D. L. (1935). Results of observations made at the United States Coast and Geodetic Survey Magnetic Observatory near Tucson, Arizona in 1927 and 1928. Coast and Geodetic Survey.
Chicago Style (17th ed.) CitationHazard, Daniel Lyman. Results of Observations Made at the United States Coast and Geodetic Survey Magnetic Observatory Near Tucson, Arizona in 1927 and 1928. Washington: Coast and Geodetic Survey, 1935.
MLA (9th ed.) CitationHazard, Daniel Lyman. Results of Observations Made at the United States Coast and Geodetic Survey Magnetic Observatory Near Tucson, Arizona in 1927 and 1928. Coast and Geodetic Survey, 1935.
Warning: These citations may not always be 100% accurate.