@misc{indiciaeb9c35e7c3222,
  title = {Simulation of ground-water flow in the Prairie du Chien-Jordan aquifer and relation to ground-water contamination by coal-tar derivatives, St. Louis Park, Minnesota},
  author = {J. R. Stark and M. F. Hult},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/70175830},
  note = {Source identifier: 70175830}
}