TY  - BOOK
AU  - Humphreys, Kenneth King [ed.]
AU  - Leonard, Joseph W [ed.]
TI  - 	Basic mathematics and computer techniques for coal preparation and mining
U1  - 622.3382 
PY  - 1983///
CY  - New York
PB  - Marcel Dekker
KW  - Coal mines and mining -- Mathematical models
KW  - Coal -- Analysis -- Techniques
ER  -