@misc{indiciaeaa25d27739ec,
  title = {Approximate potentiometric surfaces for the aquifers of the Texas coastal uplands system, 1980},
  author = {Sergio Garza and B.D. Jones and E.T. Baker},
  year = {1987},
  doi = {10.3133/ha704},
  url = {https://pubs.usgs.gov/publication/ha704},
  note = {Source identifier: ha704}
}