TY  - RPRT
TI  - Assessment of coal geology, resources, and reserve base in the Powder River Basin, Wyoming and Montana
AU  - David C. Scott
AU  - James A. Luppens
PY  - 2013
DO  - 10.3133/fs20123143
UR  - https://pubs.usgs.gov/publication/fs20123143
ID  - fs20123143
ER  -