@misc{indiciaeb4cca0312a89,
  title = {Phoenix quadrangle, Baltimore and Harford Counties, Maryland: Hydrogeology},
  author = {E. G. Otton},
  year = {1981},
  doi = {10.3133/ofr8165},
  url = {https://pubs.usgs.gov/publication/ofr8165},
  note = {Source identifier: ofr8165}
}