TY  - RPRT
TI  - Geologic map of the northern and western flanks of the Black Hills, Wyoming and Montana
AU  - Charles Sherwood Robinson
AU  - William Jameson Mapel
AU  - Maximilian Hilmar Bergendahl
PY  - 1955
DO  - 10.3133/tem873
UR  - https://pubs.usgs.gov/publication/tem873
ID  - tem873
ER  -