@misc{indiciae7b4ed0ee7924,
  title = {Water resources of the Rum River Watershed, east-central Minnesota},
  author = {Donald W. Ericson and Gerald F. Lindholm and John O. Helgesen},
  year = {1974},
  doi = {10.3133/ha509},
  url = {https://pubs.usgs.gov/publication/ha509},
  note = {Source identifier: ha509}
}