@misc{indiciae9171acc1c8aa,
  title = {U-Th-Pb Isotopic Systematics of Lunar Norite 78235},
  author = {Wayne R. Premo and M. Tatsumoto},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/70209583},
  note = {Source identifier: 70209583}
}