@misc{indiciaefcfd50c40432,
  title = {Preliminary structure contour map of a part of southeastern New Mexico showing oil and gas development},
  author = {Thomas F. Stipp and Leon Boyd Haigler},
  year = {1956},
  doi = {10.3133/om177},
  url = {https://pubs.usgs.gov/publication/om177},
  note = {Source identifier: om177}
}