@misc{indiciae0bc5f4aed601,
  title = {Digital shaded-relief map of Venezuela},
  author = {Christopher P. Garrity and Paul C. Hackley and Franco Urbani},
  year = {2004},
  doi = {10.3133/ofr20041322},
  url = {https://pubs.usgs.gov/publication/ofr20041322},
  note = {Source identifier: ofr20041322}
}