@misc{indiciaec97880eefe76,
  title = {Altitude and configuration of the potentiometric surface in lower Elk Creek watershed, Chester County, Pennsylvania, March through September 2000},
  author = {Abdul Mohammad},
  year = {2001},
  doi = {10.3133/ofr01329},
  url = {https://pubs.usgs.gov/publication/ofr01329},
  note = {Source identifier: ofr01329}
}