TY - BOOK AU - Arora, B. R. AU - Srinivas TI - Natural source electromagnetic induction in the earth U1 - 538.7 PY - 1997/// CY - New Delhi PB - New Age Internatinoal KW - Electromagnetism KW - Geomagnetic Transient variations KW - Earth - electromagnetic induction KW - Geomagnetic deep sounding ER -