@misc{indiciaed76351a7a926,
  title = {Content of zinc and copper in some fluid inclusions from the Cave-in-Rock district, southern Illinois},
  author = {Darrell M. Pinckney and Joseph Haffty},
  year = {1970},
  doi = {10.2113/gsecongeo.65.4.451},
  url = {https://pubs.usgs.gov/publication/70226269},
  note = {Source identifier: 70226269}
}