The geomagnetic field, its description and analysis /
Carnegie Institution of Washington.Department of Terrestrial Magnetism.
Vestine, E. H.(Ernest Harry),1906-1968.
Washington, D.C. : [Carnegie Institution of Washington],
1947.
"Continues a descriptive study ... begun with Carnegie Institution of Washington Publication 578 ... completes a final report on work done for the most part during the war period 1942 to 1946 under contract NOrd-392."
"Literature cited": p. 388-390.
Geomagnetism.