TY - BOOK AU - Rikitake,Tsuneji TI - Electromagnetism and the earth's interior T2 - Developments in solid earth geophysics U1 - 538.7 PY - 1966/// CY - Amsterdam PB - Elsevier KW - Geomagnetic secular variation KW - Electrical conductivity in the core KW - Earth-currents and magneto-tellurics ER -