@misc{indiciae4c55b8b9547e,
  title = {Hydrogeologic information in the Great Lakes basin, United States, and application of a geographic information system to public supply wells and hazardous-waste sites},
  author = {Kelly L. Warner and John D. Earle and Marvin G. Sherrill},
  year = {1991},
  doi = {10.3133/ofr91220},
  url = {https://pubs.usgs.gov/publication/ofr91220},
  note = {Source identifier: ofr91220}
}