@misc{indiciaeabbf240fd7e6,
  title = {Wilderness campsite conditions under an unregulated camping policy: an eastern example},
  author = {Y.-F. Leung and J. L. Marion},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/5211302},
  note = {Source identifier: 5211302}
}