@misc{indiciae186b1eb9b4e2,
  title = {Characterization of Northern California petroleum by stable carbon isotopes},
  author = {Paul G. Lillis and Leslie B. Magoon and Richard G. Stanley and Robert J. McLaughlin and Augusta Warden},
  year = {2001},
  doi = {10.3133/ofr99164},
  url = {https://pubs.usgs.gov/publication/ofr99164},
  note = {Source identifier: ofr99164}
}