geomagnetic secular variation, 1900-1965
By: by Joseph C. Cain and Shirley J. Hendricks.
Contributors: Hendricks, Shirley J.; United States. National Aeronautics and Space Administration.
Series: NASA technical note TN D-4527
Publisher: National Aeronautics and Space Administration
Published: 1968
Place of publication: Washington
Language: eng
Notes: Paper presented at the International Union of Geodesy and Geophysics, 14th General Assembly, St. Gall, Switzerland.