TY  - RPRT
TI  - Preliminary geologic map of the Carpio quadrangle, North Dakota
AU  - Richard W. Lemke
AU  - J. Hiram Smith
PY  - 1947
DO  - 10.3133/ofr476
UR  - https://pubs.usgs.gov/publication/ofr476
ID  - ofr476
ER  -