@misc{indiciaecd5315d14307,
  title = {Geologic map of the Tower City quadrangle, Schuylkill, Dauphin, and Lebanon Counties, Pennsylvania},
  author = {Gordon H. Wood},
  year = {1968},
  doi = {10.3133/gq698},
  url = {https://pubs.usgs.gov/publication/gq698},
  note = {Source identifier: gq698}
}