TY  - BOOK
ED  - India
TI  - Opening of the extensions of the central fuel reserach Institute
U1  - 662.6 
PY  - 1957///
CY  - Dhanbad
PB  - [s. n.]
KW  - Coal washing
KW  - India
KW  - Coal preparation
KW  - Coal preparation plants
ER  -