@misc{indiciae3cfedb970275,
  title = {Composition of gas seeps in northwestern Wyoming},
  author = {T.D. Lorenson and K.A. Kvenvolden and B.R. Simoneit and R.N. Leif},
  year = {1991},
  doi = {10.3133/ofr91121},
  url = {https://pubs.usgs.gov/publication/ofr91121},
  note = {Source identifier: ofr91121}
}