@misc{indiciae3108ee5a406d,
  title = {Interpretation of Landsat images: Qatar (preliminary report)},
  author = {Maurice J. Grolier},
  year = {1977},
  doi = {10.3133/ofr77295},
  url = {https://pubs.usgs.gov/publication/ofr77295},
  note = {Source identifier: ofr77295}
}