@misc{indiciaef321b0664820,
  title = {Lineboro quadrangle, Maryland: Hydrogeology},
  author = {Mark T. Duigon and E. G. Otton},
  year = {1981},
  doi = {10.3133/ofr801010},
  url = {https://pubs.usgs.gov/publication/ofr801010},
  note = {Source identifier: ofr801010}
}