@misc{indiciaeb2282968a9e4,
  title = {Map showing density of landslides in the Pittsburgh West Quadrangle, Allegheny County, Pennsylvania},
  author = {J. S. Pomeroy},
  year = {1974},
  doi = {10.3133/ofr74235},
  url = {https://pubs.usgs.gov/publication/ofr74235},
  note = {Source identifier: ofr74235}
}