@misc{indiciae615048897480,
  title = {Environmental geohydrology of the Cockeysville Quadrangle, Maryland},
  author = {E. G. Otton},
  year = {1975},
  doi = {10.3133/ofr75197},
  url = {https://pubs.usgs.gov/publication/ofr75197},
  note = {Source identifier: ofr75197}
}