@misc{indiciaec4b1de9f3f40,
  title = {Water in sand and gravel deposits in McHenry County, Illinois},
  author = {J.R. Nicholas and J. T. Krohelski},
  year = {1984},
  doi = {10.3133/wri834048},
  url = {https://pubs.usgs.gov/publication/wri834048},
  note = {Source identifier: wri834048}
}