Geomagnetic indices C and K.
APA Citation
International Association of Geomagnetism and Aeronomy. (19481959). Geomagnetic indices C and K. Washington, D.C.: International Union of Geodesy and Geophysics, Association of Terrestrial Magnetism and Electricity.
MLA Citation
International Association of Geomagnetism and Aeronomy. Geomagnetic Indices C And K. Washington, D.C.: International Union of Geodesy and Geophysics, Association of Terrestrial Magnetism and Electricity, 19481959.
Warning: These citations may not always be complete (especially for serials).