@misc{indiciaec3dcf05604d4,
  title = {A primer on the geological occurrence of gas hydrate},
  author = {K.A. Kvenvolden},
  year = {1998},
  doi = {10.1144/gsl.sp.1998.137.01.02},
  url = {https://pubs.usgs.gov/publication/70020089},
  note = {Source identifier: 70020089}
}