@misc{indiciae3186d703dbe0,
  title = {Preliminary geologic map of the northwest region, Yemen Arab Republic, Landsat-1, image No. 1136-07012},
  author = {Maurice J. Grolier and William C. Overstreet},
  year = {1976},
  doi = {10.3133/ofr76737},
  url = {https://pubs.usgs.gov/publication/ofr76737},
  note = {Source identifier: ofr76737}
}