@misc{indiciaefd378c4e4340,
  title = {Reconnaissance of the ground-water resources of the Arkansas Valley region, Arkansas},
  author = {R.M. Cordova},
  year = {1964},
  doi = {10.3133/wsp1669bb},
  url = {https://pubs.usgs.gov/publication/wsp1669BB},
  note = {Source identifier: wsp1669BB}
}