@misc{indiciae8e23c36663e6,
  title = {Assessment of undiscovered oil and gas resources of four west Africa geologic provinces},
  author = {Michael E. Brownfield and Ronald R. Charpentier and Troy A. Cook and Timothy R. Klett and Janet K. Pitman and Richard M. Pollastro and Christopher J. Schenk and Marilyn E. Tennyson},
  year = {2010},
  doi = {10.3133/fs20103006},
  url = {https://pubs.usgs.gov/publication/fs20103006},
  note = {Source identifier: fs20103006}
}