@misc{indiciaef6165fd03088,
  title = {Geology and total petroleum systems of the Gulf of Guinea province of West Africa},
  author = {Michael E. Brownfield and Ronald R. Charpentier},
  year = {2006},
  doi = {10.3133/b2207c},
  url = {https://pubs.usgs.gov/publication/b2207C},
  note = {Source identifier: b2207C}
}