@misc{indiciae27406d11d56d,
  title = {Field trip day four: Road log for the Sterling Hill and Franklin Zinc Mines, New Jersey},
  author = {Robert W. Metsger and Richard A. Volkert and Craig A. Johnson},
  year = {2001},
  url = {https://pubs.usgs.gov/publication/70207864},
  note = {Source identifier: 70207864}
}