@misc{indiciae9c95b8e30856,
  title = {Mineral reconnaissance in the Chagai District, Pakistan, using a four-dimensional vector method of digital classification of Landsat data},
  author = {Robert Gordon Schmidt},
  year = {1980},
  doi = {10.3133/ofr80721},
  url = {https://pubs.usgs.gov/publication/ofr80721},
  note = {Source identifier: ofr80721}
}