TY - BOOK AU - Minings. Geological And Metallurgical Institute Of India. ED - Minings. Geological And Metallurgical Institute Of India. TI - New technologies for coal mining industry : Papers U1 - X9(HZ551).ogf.2.N8, M8 PY - 1988/// CY - Calcutta PB - The Author India KW - Minings ER -