TY  - RPRT
TI  - The Pumpkin Buttes coal field, Wyoming
AU  - C. H. Wegemann
AU  - R.W. Howell
AU  - C. E. Dobbin
PY  - 1929
DO  - 10.3133/b806a
UR  - https://pubs.usgs.gov/publication/b806A
ID  - b806A
ER  -