@misc{indiciae85c156cf8743,
  title = {Selected geohydrologic characteristics of the Patapsco aquifers at Chalk Point, Prince Georges County, Maryland},
  author = {Frederick K. Mack},
  year = {1987},
  doi = {10.3133/ofr87227},
  url = {https://pubs.usgs.gov/publication/ofr87227},
  note = {Source identifier: ofr87227}
}