@misc{indiciae5d4b4bb83f23,
  title = {Map showing landslides and slopes most susceptible to sliding in part of the Aliquippa 7 1/2-minute Quadrangle, Beaver County, Pennsylvania},
  author = {John S. Pomeroy},
  year = {1977},
  doi = {10.3133/ofr77832},
  url = {https://pubs.usgs.gov/publication/ofr77832},
  note = {Source identifier: ofr77832}
}