@misc{indiciaedc9b6a5098bb,
  title = {Zircon geochronology of Precambrian rocks in southeastern Wyoming and northern Colorado},
  author = {Wayne R. Premo and W. R. Van Schmus},
  year = {1989},
  doi = {10.1130/spe235-p13},
  url = {https://pubs.usgs.gov/publication/70209581},
  note = {Source identifier: 70209581}
}