@misc{indiciae105fac44f077,
  title = {Visual counts as an index of White-Tailed Prairie Dog density},
  author = {George E. Menkens and Dean E. Biggins and Stanley H. Anderson},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/70124393},
  note = {Source identifier: 70124393}
}