@misc{indiciaee8190d3ba086,
  title = {Borehole geophysical logging for water-resources investigations in Pennsylvania},
  author = {Randall W. Conger},
  year = {1996},
  doi = {10.3133/fs21895},
  url = {https://pubs.usgs.gov/publication/fs21895},
  note = {Source identifier: fs21895}
}