@misc{indiciae6c54d3b3a036,
  title = {Radar as a tool for regional investigations},
  author = {Nelson R. Nunnally},
  year = {1969},
  doi = {10.3133/ofr69184},
  url = {https://pubs.usgs.gov/publication/ofr69184},
  note = {Source identifier: ofr69184}
}