@misc{indiciaeac74d0057cb9,
  title = {Preliminary geologic map of southernmost Texas, United States, and parts of Tamaulipas and Nuevo Leon, Mexico: Environmental health investigations in the United States-Mexico border region},
  author = {William R. Page and D. Paco VanSistine and Kenzie J. Turner},
  year = {2005},
  doi = {10.3133/ofr20051409},
  url = {https://pubs.usgs.gov/publication/ofr20051409},
  note = {Source identifier: ofr20051409}
}