@misc{indiciae1789eb2ea6a2,
  title = {Camping impact management at Isle Royale National Park: an evaluation of visitor activity containment policies from the perspective of social conditions},
  author = {T. A. Farrell and J. L. Marion},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/5211301},
  note = {Source identifier: 5211301}
}