TY - BOOK AU - Richter, Charles F. AU - TI - Elementary seismology U1 - 550.34 PY - 1958/// CY - New Delhi PB - Eurasia KW - Geological physics KW - Geology, Dynamic KW - terrestrial physics KW - Geophysics KW - Auroras KW - Oceanography KW - Plate tectonics KW - earth sciences KW - Geology KW - Seismology ER -