Arogyaswamy, R.N.P..
Courses in Mining Geology / - Third Ed. / - New Delhi-1 : Oxford & IBH Publishing Co. , 1976 - p.695,xi :
81-204-0266-9
HZ / M8
Courses in Mining Geology / - Third Ed. / - New Delhi-1 : Oxford & IBH Publishing Co. , 1976 - p.695,xi :
81-204-0266-9
HZ / M8