@misc{indiciae89d8d673ad0f,
  title = {Altitude and configuration of the potentiometric surface in the crystalline and metasedimentary rocks in Birmingham, Newlin, Pennsbury, and Pocopson Townships and parts of East Marlborough and Kennett Townships, Chester County, Pennsylvania, June 1994 through November 1995},
  author = {Charles R. Wood and William C. Wettstein and Stephen S. Aichele and James Joyce and Frank M. Schneider},
  year = {1996},
  doi = {10.3133/ofr96336},
  url = {https://pubs.usgs.gov/publication/ofr96336},
  note = {Source identifier: ofr96336}
}