@misc{indiciae4709bdcbda46,
  title = {C13 and O18 compositions in some fresh-water carbonates associated with ultramafic rocks and serpentinites: Western United States},
  author = {J. R. O’Neil and I. Barnes},
  year = {1971},
  doi = {10.1016/0016-7037(71)90067-6},
  url = {https://pubs.usgs.gov/publication/70010381},
  note = {Source identifier: 70010381}
}