@misc{indiciae50f8b229686e,
  title = {Hydrology of area 25, Eastern Region, Interior Coal Province, Illinois},
  author = {E.E. Zuehls and G.L. Ryan and D.B. Peart and K. K. Fitzgerald},
  year = {1981},
  doi = {10.3133/ofr81636},
  url = {https://pubs.usgs.gov/publication/ofr81636},
  note = {Source identifier: ofr81636}
}