TY  - RPRT
TI  - Stratigraphy and coal geology of the lower part of the Fort Union Formation in the Grass Creek coal mine area, southwestern Bighorn Basin, Wyoming
AU  - Stephen B. Roberts
AU  - Dominique Bossiroy
PY  - 1995
DO  - 10.3133/coal146
UR  - https://pubs.usgs.gov/publication/coal146
ID  - coal146
ER  -