@misc{indiciae2eb9766a1dcc,
  title = {Ground-water data for Michigan 1987},
  author = {G.C. Huffman and C.R. Whited},
  year = {1988},
  doi = {10.3133/ofr88704},
  url = {https://pubs.usgs.gov/publication/ofr88704},
  note = {Source identifier: ofr88704}
}