@misc{indiciaef72ae6bcec0c,
  title = {Preliminary geologic map of the southeastern region, Yemen Arab Republic, Landsat-1 image No. 1206-06504},
  author = {Maurice J. Grolier and William C. Overstreet},
  year = {1976},
  doi = {10.3133/ofr76745},
  url = {https://pubs.usgs.gov/publication/ofr76745},
  note = {Source identifier: ofr76745}
}