Carnegie Institution of Washington. Department of Terrestrial Magnetism & Rooney, W. J. (1949). Earth-current results at Tucson Magnetic Observatory, 1932-1942. [publisher not identified].
Chicago Style (17th ed.) CitationCarnegie Institution of Washington. Department of Terrestrial Magnetism and W. J. Rooney. Earth-current Results at Tucson Magnetic Observatory, 1932-1942. Washington: [publisher not identified], 1949.
MLA (9th ed.) CitationCarnegie Institution of Washington. Department of Terrestrial Magnetism and W. J. Rooney. Earth-current Results at Tucson Magnetic Observatory, 1932-1942. [publisher not identified], 1949.
Warning: These citations may not always be 100% accurate.