@misc{indiciae5a931975f7aa,
  title = {Map showing landslides and areas most susceptible to sliding in Beaver Quadrangle and portions of the Beaver Falls and New Galilee quadrangles, Beaver County, Pennsylvania},
  author = {John S. Pomeroy},
  year = {1978},
  doi = {10.3133/ofr78387},
  url = {https://pubs.usgs.gov/publication/ofr78387},
  note = {Source identifier: ofr78387}
}