@misc{indiciae890acb4341ce,
  title = {Floods on Schuylkill River from Conshohocken to Philadelphia, Pennsylvania},
  author = {A. T. Alter},
  year = {1967},
  doi = {10.3133/ha248},
  url = {https://pubs.usgs.gov/publication/ha248},
  note = {Source identifier: ha248}
}