@misc{indiciae610bc57966a5,
  title = {Extent and frequency of floods on Schuylkill River near Norristown, Pennsylvania},
  author = {W. F. Busch and L. C. Shaw},
  year = {1973},
  doi = {10.3133/ha483},
  url = {https://pubs.usgs.gov/publication/ha483},
  note = {Source identifier: ha483}
}