@misc{indiciae7c7e1af4df90,
  title = {Events affecting gold exploration in Venezuela since 1999},
  author = {David R. Wilburn},
  year = {2014},
  doi = {10.3133/ofr20141068},
  url = {https://pubs.usgs.gov/publication/ofr20141068},
  note = {Source identifier: ofr20141068}
}