@misc{indiciae3dd8c128f6a4,
  title = {Surficial geology and geomorphology of Potter County, Pennsylvania},
  author = {C. S. Denny},
  year = {1956},
  doi = {10.3133/pp288},
  url = {https://pubs.usgs.gov/publication/pp288},
  note = {Source identifier: pp288}
}