TY  - RPRT
TI  - Factors affecting the geochemistry of a thick, subbituminous coal bed in the Powder River Basin: Volcanic, detrital, and peat-forming processes
AU  - Sharon S. Crowley
AU  - Leslie F. Ruppert
AU  - Harvey E. Belkin
AU  - R.W. Stanton
AU  - T.A. Moore
PY  - 1993
DO  - 10.1016/0146-6380(93)90067-l
UR  - https://pubs.usgs.gov/publication/70017396
ID  - 70017396
ER  -