@misc{indiciaea5f94e3d5bb0,
  title = {Heavy storm precipitation and related mass movement, Allegheny County, Pennsylvania},
  author = {Seymour Subitzky},
  year = {1975},
  doi = {10.3133/mf641d},
  url = {https://pubs.usgs.gov/publication/mf641D},
  note = {Source identifier: mf641D}
}