@misc{indiciaecec3e8dd175a,
  title = {Ground-water data for Michigan 1990},
  author = {G.C. Huffman and C.R. Whited},
  year = {1993},
  doi = {10.3133/ofr92114},
  url = {https://pubs.usgs.gov/publication/ofr92114},
  note = {Source identifier: ofr92114}
}