@misc{indiciae530f24fc30fa,
  title = {Topographical map of United Kingdom of Libya},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1962},
  doi = {10.3133/i350b},
  url = {https://pubs.usgs.gov/publication/i350B},
  note = {Source identifier: i350B}
}