@misc{indiciae975d17bbc234,
  title = {Topography of the pre-Pleistocene bedrock surface, Souris River area, North Dakota},
  author = {R. W. Lemke},
  year = {1953},
  doi = {10.3133/ofr53153},
  url = {https://pubs.usgs.gov/publication/ofr53153},
  note = {Source identifier: ofr53153}
}