@misc{indiciae47d4fb56079e,
  title = {Summary of miscellaneous potassium-argon age measurements, U.S. Geological Survey, Menlo Park, California, for the years 1972-74},
  year = {1976},
  doi = {10.3133/cir727},
  url = {https://pubs.usgs.gov/publication/cir727},
  note = {Source identifier: cir727}
}