@misc{indiciae790169687994,
  title = {Evaluation of a color-coded Landsat 5/6 ratio image for mapping lithologic differences in western South Dakota},
  author = {Gary L. Raines and R.F. Bretz and George W. Shurr},
  year = {1979},
  doi = {10.3133/ofr79596},
  url = {https://pubs.usgs.gov/publication/ofr79596},
  note = {Source identifier: ofr79596}
}