@misc{indiciae653ba40c1df6,
  title = {General availability of ground water from the glacial deposits in Michigan},
  author = {F. R. Twenter},
  year = {1966},
  doi = {10.3133/ofr66136},
  url = {https://pubs.usgs.gov/publication/ofr66136},
  note = {Source identifier: ofr66136}
}