@misc{indiciae5db1a86d4938,
  title = {Geology and ground-water resources of the Grand Rapids area, north-central Minnesota},
  author = {Edward L. Oakes},
  year = {1970},
  doi = {10.3133/ha322},
  url = {https://pubs.usgs.gov/publication/ha322},
  note = {Source identifier: ha322}
}