@misc{indiciae64ac6eb087e4,
  title = {Summary of ground-water hydrological data in Michigan for 1971},
  author = {G.C. Huffman and T. Thompson},
  year = {1973},
  doi = {10.3133/70179368},
  url = {https://pubs.usgs.gov/publication/70179368},
  note = {Source identifier: 70179368}
}