@misc{indiciae4e5a4f952f5b,
  title = {Map showing paleogeography of the continental shelf during the low stand of sea level, Wisconsin glacial epoch, Port Isabel 1 degree x 2 degrees quadrangle, Texas},
  author = {H. L. Berryhill},
  year = {1980},
  doi = {10.3133/i1254e},
  url = {https://pubs.usgs.gov/publication/i1254E},
  note = {Source identifier: i1254E}
}