@misc{indiciae49743dae50f3,
  title = {Preliminary report on gaseous hydrocarbons in sediment and seeps, offshore Eel River basin, California},
  author = {M.E. Field and K.A. Kvenvolden},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70186563},
  note = {Source identifier: 70186563}
}