@misc{indiciae22b8ed0a431d,
  title = {A tabulation of K-Ar, Rb-Sr, and Pb-α ages obtained for materials within the United States (including Alaska and Hawaii) during the years 1965 through 1968},
  author = {Richard F. Marvin},
  year = {1974},
  doi = {10.3133/ofr741069},
  url = {https://pubs.usgs.gov/publication/ofr741069},
  note = {Source identifier: ofr741069}
}