@misc{indiciae8fcd16373b53,
  title = {Status of flood-plain mapping, greater Pittsburgh region, Pennsylvania, 1972},
  author = {R.M. Beall and A.C. Lardieri},
  year = {1972},
  doi = {10.3133/ofr7230},
  url = {https://pubs.usgs.gov/publication/ofr7230},
  note = {Source identifier: ofr7230}
}