@misc{indiciaeb9a1dbb27223,
  title = {Correlation of subsurface Lower Cretaceous formations of east and south Texas},
  author = {Ralph Willard Imlay},
  year = {1945},
  doi = {10.3133/oc8},
  url = {https://pubs.usgs.gov/publication/oc8},
  note = {Source identifier: oc8}
}