@misc{indiciae7638953adf98,
  title = {Geochemistry of coastal tarbells in southern California: A tribute to I.R. Kaplan},
  author = {Keith A. Kvenvolden and Frances D. Hostettler},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/70199403},
  note = {Source identifier: 70199403}
}