@misc{indiciae43ec17013d6d,
  title = {Surface water supply of the United States, 1966-70, Part 4, St. Lawrence river basin, v. 1, Basins of streams tributary to Lakes Superior, Michigan and Huron},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1974},
  doi = {10.3133/wsp2111},
  url = {https://pubs.usgs.gov/publication/wsp2111},
  note = {Source identifier: wsp2111}
}