@misc{indiciae7a5215654b3a,
  title = {Preliminary geologic map of the northeastern region, Yemen Arab Republic, Landsat-1 image No. 1152-06501},
  author = {Maurice J. Grolier and William C. Overstreet},
  year = {1976},
  doi = {10.3133/ofr76744},
  url = {https://pubs.usgs.gov/publication/ofr76744},
  note = {Source identifier: ofr76744}
}