@misc{indiciae0b21b5661a81,
  title = {Basic concepts of computerized digital image processing for geologists},
  author = {Christopher D. Condit and Pat S. Chavez},
  year = {1979},
  doi = {10.3133/b1462},
  url = {https://pubs.usgs.gov/publication/b1462},
  note = {Source identifier: b1462}
}