@misc{indiciaea037f4405206,
  title = {Mapping Buried Stream Valleys in Philadelphia, Pennsylvania},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {2000},
  doi = {10.3133/fs11700},
  url = {https://pubs.usgs.gov/publication/fs11700},
  note = {Source identifier: fs11700}
}