@misc{indiciaec1139a94053d,
  title = {Preliminary geologic map of the Wakefield quadrangle, Gogebic County, Michigan},
  author = {William C. Prinz and Harold A. Hubbard},
  year = {1975},
  doi = {10.3133/ofr75119},
  url = {https://pubs.usgs.gov/publication/ofr75119},
  note = {Source identifier: ofr75119}
}