@misc{indiciaedc9789649943,
  title = {Machine-assisted analysis of Landsat data in the study of crop-soils relationships},
  author = {William C. Draeger},
  year = {1976},
  doi = {10.3133/ofr76603},
  url = {https://pubs.usgs.gov/publication/ofr76603},
  note = {Source identifier: ofr76603}
}