@misc{indiciae8119f8ba2b2a,
  title = {The Precambrian of the Rocky Mountain region},
  author = {Carl E. Hedge and Jack Edward Harrison and R. S. Houston and O.L. Tweto and Z. E. Peterman and R.R. Reid},
  year = {1986},
  doi = {10.3133/pp1241d},
  url = {https://pubs.usgs.gov/publication/pp1241D},
  note = {Source identifier: pp1241D}
}