@misc{indiciaeec2668b1a57c, title = {Progress report on the geology and ground-water resources of the Fort Berthold Indian Reservation, North Dakota}, author = {E.D. Gordon and R.J. Dingman}, year = {1951}, doi = {10.3133/ofr51111}, url = {https://pubs.usgs.gov/publication/ofr51111}, note = {Source identifier: ofr51111} }