TY  - BOOK
AU  - World Mining Congress. (12th)1984 (New Delhi)
ED  - World Mining Congress. (12th)1984 (New Delhi)
TI  - Optimal exploitation of solid mineral resources 
U1  - X9(HZ).1.N8, M4.1-.4 
PY  - 1984///
CY  - Calcutta
PB  - Institution of Engineers India       
KW  - Minings
ER  -