@misc{indiciae090fd469296f,
  title = {Extent and frequency of inundation on the Perkiomen Creek flood plain from Green Lane Reservoir to the Schuylkill River (near Oaks, Pennsylvania)},
  author = {William F. Busch},
  year = {1969},
  doi = {10.3133/ofr6929},
  url = {https://pubs.usgs.gov/publication/ofr6929},
  note = {Source identifier: ofr6929}
}