@misc{indiciaeadbcae69cee0,
  title = {Helicopter electromagnetic and magnetic survey data and maps, Seco Creek area, Medina and Uvalde counties, Texas},
  author = {Bruce D. Smith and David V. Smith and Patricia L. Hill and Victor F. Labson},
  year = {2003},
  doi = {10.3133/ofr03226},
  url = {https://pubs.usgs.gov/publication/ofr03226},
  note = {Source identifier: ofr03226}
}