@misc{indiciae1331e6e651a7,
  title = {Water resources of the Maumee River basin, northeastern Indiana},
  author = {Robert A. Pettijohn and L.G. Davis},
  year = {1973},
  doi = {10.3133/ha493},
  url = {https://pubs.usgs.gov/publication/ha493},
  note = {Source identifier: ha493}
}