@misc{indiciae4329b872d521,
  title = {Landsliding in Allegheny County, Pennsylvania},
  author = {Reginald Peter Briggs and John S. Pomeroy and William E. Davies},
  year = {1975},
  doi = {10.3133/cir728},
  url = {https://pubs.usgs.gov/publication/cir728},
  note = {Source identifier: cir728}
}