@misc{indiciaec52bc421854d,
  title = {Compilation of isotopic ages within the Needles 1 degree by 2 degree Quadrangle, California and Arizona},
  author = {J.P. Calzia and J. L. Morton},
  year = {1980},
  doi = {10.3133/ofr801303},
  url = {https://pubs.usgs.gov/publication/ofr801303},
  note = {Source identifier: ofr801303}
}