@misc{indiciaeabe7070ba471,
  title = {Map showing wells drilled to depths [greater than or equal to] 15,000 feet in the north-central Gulf Coast region},
  author = {Debra K. Higley},
  year = {1992},
  doi = {10.3133/om224b},
  url = {https://pubs.usgs.gov/publication/om224B},
  note = {Source identifier: om224B}
}