TY  - BOOK
AU  - Mitchell,David R.
TI  - Coal preparation
T2  - The seely W. Mudd series
PY  - 1950///
CY  - New York
PB  - The American Institute of Mining and Metallurgical engineers
KW  - Carbon
KW  - lemb
KW  - Libro
KW  - unescot
ER  -