@misc{indiciaeee89800174d8,
  title = {Hydrologic investigations of the Edwards and associated limestones in the San Antonio area, Texas; progress report, 1970-71},
  author = {R.W. Maclay and P.L. Rettman},
  year = {1972},
  doi = {10.3133/ofr72244},
  url = {https://pubs.usgs.gov/publication/ofr72244},
  note = {Source identifier: ofr72244}
}