@misc{indiciaeff2fba3a5b44,
  title = {Program, abstracts, and field trip roadlog for International Gold Conference, San Jose, Costa Rica, October 20-22, 1987},
  year = {1987},
  doi = {10.3133/ofr87602},
  url = {https://pubs.usgs.gov/publication/ofr87602},
  note = {Source identifier: ofr87602}
}