GRANT, F. S. Y OTRO INTERPRETATION THEORY IN APPLIED GEOPHYSICS - 0 - NEW YORK-U.S.A. MCGRAW-HILL 1919 - 584 pag 23 cm - 65 . - 0 0 . METHODS-MAGNETIC/ELECTRICAL-INDUCTION Subjects--Topical Terms: CIENCIAS PURAS Dewey Class. No.: 551 / G79