TY  - BOOK
AU  -  Sinha,R.K.
AU  - Sharma,N.L.
TI  - Mineral Economics : Revised And Epdated
U1  - 553 19
PY  - 1980///
CY  - New Delhi
PB  - Oxford & IBH Pub. Co.
KW  - Mines and mineral resources
KW  - Mineral industries
N1  - Includes bibliographical references and indexs
ER  -