@misc{indiciae64a5af7d690c,
  title = {Ground-water levels in the Cockeysville marble of southern Chester County, Pennsylvania, 1983-84},
  author = {Deloris W. Speight},
  year = {1985},
  doi = {10.3133/wri854341},
  url = {https://pubs.usgs.gov/publication/wri854341},
  note = {Source identifier: wri854341}
}