TY  - BOOK
AU  - Verma , D. N.
TI  - Economic Geology
SN  - 9.7893508438e+012
U1  - 553 
PY  - 2014///
CY  - New Delhi: 
PB  - Centrum Press, 
KW  - Coal Industry
KW  - Earth Science
KW  - Geology
KW  - Ore
ER  -