@misc{indiciae6726a22755e9,
  title = {Follow-up examination of field areas with gold potential in Costa Rica; analytical results},
  author = {Steve Ludington and W.C. Bagby},
  year = {1988},
  doi = {10.3133/ofr88522},
  url = {https://pubs.usgs.gov/publication/ofr88522},
  note = {Source identifier: ofr88522}
}