@misc{indiciae2fffbd3c64be,
  title = {Ground-water data for Michigan, 1977},
  author = {G.C. Huffman},
  year = {1979},
  doi = {10.3133/ofr79332},
  url = {https://pubs.usgs.gov/publication/ofr79332},
  note = {Source identifier: ofr79332}
}