@misc{indiciaecf31ecdbb7a7,
  title = {Mineral resources of the Rock River Canyon Wilderness Study Area, Alger County, Michigan},
  author = {Jesse William Whitlow and Philip J. Geraci and Peter C. Mory and Elizabeth R. King},
  year = {1978},
  doi = {10.3133/ofr78527},
  url = {https://pubs.usgs.gov/publication/ofr78527},
  note = {Source identifier: ofr78527}
}