@misc{indiciae0c7cd1c571c4,
  title = {Statistical classification of hydrogeologic regions in the fractured rock area of Maryland and parts of the District of Columbia, Virginia, West Virginia, Pennsylvania, and Delaware},
  author = {Brandon J. Fleming and Andrew E. LaMotte and Andrew J. Sekellick},
  year = {2013},
  doi = {10.3133/sir20135043},
  url = {https://pubs.usgs.gov/publication/sir20135043},
  note = {Source identifier: sir20135043}
}