@misc{indiciaee1fe38635500,
  title = {Landslide susceptibility and land modified by man map of part of the Aliquippa 7-1/2' Quadrangle, Allegheny County and vicinity, Pennsylvania},
  author = {John S. Pomeroy},
  year = {1974},
  doi = {10.3133/ofr74120},
  url = {https://pubs.usgs.gov/publication/ofr74120},
  note = {Source identifier: ofr74120}
}