@misc{indiciae440bd752f8f9,
  title = {Geohydrology, water levels and directions of flow, and occurrence of light-nonaqueous-phase liquids on ground water in northwestern Indiana and the Lake Calumet area of northeastern Illinois},
  author = {Robert T. Kay and Richard F. Duwelius and Timothy A. Brown and Frederick A. Micke and Carol A. Witt-Smith},
  year = {1996},
  doi = {10.3133/wri954253},
  url = {https://pubs.usgs.gov/publication/wri954253},
  note = {Source identifier: wri954253}
}