@misc{indiciaeec779b836ec3,
  title = {Landform classification of New Mexico by computer},
  author = {Richard Dikau and Earl E. Brabb and Robert M. Mark},
  year = {1991},
  doi = {10.3133/ofr91634},
  url = {https://pubs.usgs.gov/publication/ofr91634},
  note = {Source identifier: ofr91634}
}