@misc{indiciaed5195592f11f,
  title = {The Keweenawan geology of Isle Royale, Michigan},
  author = {N. King Huber},
  year = {1971},
  doi = {10.3133/ofr71154},
  url = {https://pubs.usgs.gov/publication/ofr71154},
  note = {Source identifier: ofr71154}
}