@misc{indiciae6d2ec2900bea,
  title = {Water resources data for Minnesota, 1969; Part 1. Surface water records and Part 2. Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/wdrmn6912},
  url = {https://pubs.usgs.gov/publication/wdrMN6912},
  note = {Source identifier: wdrMN6912}
}