TY  - BOOK
AU  - Peters,W.
AU  - Schilling,H.D.
TI  - Coal utilization: an international forum on new technologies 
SN  - 9231020811
U1  - 333.82213 19th ed.
PY  - 1983///].
CY  - [Paris]: 
PB  - Unesco, 
KW  - Coal
KW  - Congresses
ER  -