TY  - RPRT
TI  - Chemical analyses of lignite from the Sentinel Butte Member of the Paleocene Fort Union Formation, North Beulah EMRIA study site, Mercer County, North Dakota
AU  - R.H. Affolter
AU  - M.A. Kirschbaum
PY  - 1982
DO  - 10.3133/ofr82131
UR  - https://pubs.usgs.gov/publication/ofr82131
ID  - ofr82131
ER  -