Land and ocean magnetic observations, 1927-1944 /
Carnegie Institution of Washington.Department of Terrestrial Magnetism.
Wallis, William Fisher,1874-
Green, John Wilbur,1873-
Washington, D.C. : Carnegie Institution of Washington,
1947.
Land magnetic observations, 1927-1944 -- Ocean magnetic observations, cruise VII of the Carnegie, 1928-1929.
Carnegie (Ship)
Geomagnetism