TY  - BOOK
AU  - Chattoraj,R.N.
TI  - The Story of coal
U1  - 622.62 
PY  - 1977///
CY  - Dhanbad
PB  - Dhanbad Pub
KW  - Coal mines and mining
KW  - History
KW  - Mines and mineral sources
KW  - History and development
KW  - Mineral industries
KW  - Hhistory
ER  -