@misc{indiciae0aecbe9c2d16,
  title = {The Putumayo-Oriente-Maranon Province of Colombia, Ecuador, and Peru; Mesozoic-Cenozoic and Paleozoic petroleum systems},
  author = {D.K. Higley},
  year = {2001},
  doi = {10.3133/ds63},
  url = {https://pubs.usgs.gov/publication/ds63},
  note = {Source identifier: ds63}
}