@misc{indiciae6f81f8806dfe,
  title = {Bedrock geology of the Lake Medora quadrangle, Michigan},
  author = {Henry Rowland Cornwall},
  year = {1954},
  doi = {10.3133/gq52},
  url = {https://pubs.usgs.gov/publication/gq52},
  note = {Source identifier: gq52}
}