@misc{indiciaece3d4deab973,
  title = {Summary of isotopic geochronology for the Leadville 1 degree x 2 degrees Quadrangle, central Colorado},
  author = {A. R. Wallace},
  year = {1993},
  doi = {10.3133/ofr93615},
  url = {https://pubs.usgs.gov/publication/ofr93615},
  note = {Source identifier: ofr93615}
}