TY  - BOOK
AU  - Basak, P.K
AU  - Central Fuel Research Institute
TI  - Indian Coals; qaulity evaluation data Vol. 7 Kamptee, Umrer, Bandar, Wardha Valley and Godavari Valley coalfields
PY  - 1981///
CY  - Dhanbad
PB  - CFRI
ER  -