@misc{indiciaefbb29241bab3,
  title = {A selected bibliography: Remote sensing applications in geography},
  author = {W. J. Ripple},
  year = {1977},
  doi = {10.3133/70159079},
  url = {https://pubs.usgs.gov/publication/70159079},
  note = {Source identifier: 70159079}
}