@misc{indiciaee4bb7fec8552,
  title = {Vigil Network sites: A sample of data for permanent filing},
  author = {Luna Bergere Leopold and William W. Emmett},
  year = {1965},
  doi = {10.1080/02626666509493401},
  url = {https://pubs.usgs.gov/publication/70185670},
  note = {Source identifier: 70185670}
}