@misc{indiciaec61433a7c41c,
  title = {Stratigraphy of pre-Keweenawan rocks in parts of northern Michigan},
  author = {H. L. James},
  year = {1958},
  doi = {10.3133/pp314c},
  url = {https://pubs.usgs.gov/publication/pp314C},
  note = {Source identifier: pp314C}
}