Geomagnetic K indices Aug 1932 to Aug 1933
Geomagnetic K indices Aug 1932 to Aug 1933
edited by J. Bartels
- Washington North-Holland 1950
- 53p.
Geomagnetic Indices
083.550.38 / IAGA-12D
Geomagnetic Indices
083.550.38 / IAGA-12D