TY  - BOOK
AU  - Sinha,R.K.
AU  - Sharma,N.L.,auth.
TI  - Mineral Economics
U1  - 338.7622 
PY  - 1976///
CY  - Delhi
PB  - Oxford & IBH Publishing
KW  - Extraction Of  Minerals
KW  - Mineral Production
KW  - Prodction
N1  - Includes bibliography and index
ER  -