@misc{indiciaefa3142715acc,
  title = {Introduction to correlation of Precambrian rock sequences},
  author = {Jack Edward Harrison and Zell E. Peterman},
  year = {1984},
  doi = {10.3133/pp1241a},
  url = {https://pubs.usgs.gov/publication/pp1241A},
  note = {Source identifier: pp1241A}
}