TY  - BOOK
AU  - Basak, P.K
AU  - Central Fuel Research Institute
TI  - Indian Coals; quality evaluation data Vol. 6 Chirimiri, Sohagpur, johilla river, Umaria, Pench-Kanhan-Tawa valley & Mohpani coalfields
PY  - 1979///
CY  - Dhanbad
PB  - CFRI
ER  -