@misc{indiciae8f617592b19d,
  title = {Asphalt Deposits Near Uvalde, Uvalde County, Texas},
  author = {Joseph M. Gorman and Raymond C. Robeck},
  year = {1946},
  doi = {10.3133/ofr468},
  url = {https://pubs.usgs.gov/publication/ofr468},
  note = {Source identifier: ofr468}
}