@misc{indiciae68b10e99a8d7,
  title = {Pictorial map and controlled photomosaic of Tethys},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1992},
  doi = {10.3133/i2157},
  url = {https://pubs.usgs.gov/publication/i2157},
  note = {Source identifier: i2157}
}