@misc{indiciae0425e1cdfc0c,
  title = {Zones of regional metamorphism in the Precambrian of northern Michigan},
  author = {Harold L. James},
  year = {1955},
  doi = {10.1130/0016-7606(1955)66[1455:zormit]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70220437},
  note = {Source identifier: 70220437}
}