@misc{indiciae5e294e07607b,
  title = {Rb/Sr isotopic ratios in selected lower crust-upper mantle nodules from Colorado-Wyoming kimberlites},
  author = {C.B. Smith and M. E. McCallum and C. E. Hedge},
  year = {1982},
  doi = {10.3133/ofr82178},
  url = {https://pubs.usgs.gov/publication/ofr82178},
  note = {Source identifier: ofr82178}
}