TY  - GEN
AU  - Sinha,R.K.
AU  - Sharma,N.L.
TI  - Mineral economics
U1  - 338.2 
PY  - 1993///
CY  - New Delhi : 
PB  - Oxford and IBH Publishing Co. Pvt. Ltd., 
KW  - Future sources of mineral supply
KW  - Fesibility study
KW  - National mineral policy
KW  - Mineral economics
ER  -