@misc{indiciaec5eeedeffffc,
  title = {Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania},
  author = {Dennis W. Risser and Philip H. Bird},
  year = {2003},
  doi = {10.3133/wri034159},
  url = {https://pubs.usgs.gov/publication/wri034159},
  note = {Source identifier: wri034159}
}