@misc{indiciae25f2d4964762,
  title = {Early developments in petroleum geochemistry},
  author = {J.M. Hunt and R. Paul Philp and Keith A. Kvenvolden},
  year = {2002},
  doi = {10.1016/s0146-6380(02)00056-6},
  url = {https://pubs.usgs.gov/publication/70208243},
  note = {Source identifier: 70208243}
}