@misc{indiciaebf726d8b6efa,
  title = {An evaluation of camping impacts and their management at Isle Royale National Park},
  author = {T. A. Farrell and J. L. Marion},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/5200180},
  note = {Source identifier: 5200180}
}