@misc{indiciae190d93fe10d2,
  title = {Geologic map of the Tamaqua quadrangle, Carbon and Schuylkill Counties, Pennsylvania},
  author = {Gordon H. Wood},
  year = {1974},
  doi = {10.3133/gq1133},
  url = {https://pubs.usgs.gov/publication/gq1133},
  note = {Source identifier: gq1133}
}