@misc{indiciae1a2c81ef8180,
  title = {Radiocarbon dating of groundwater in a confined aquifer in southeast Arizona},
  author = {F. N. Robertson},
  year = {2016},
  doi = {10.1017/s0033822200063955},
  url = {https://pubs.usgs.gov/publication/70016337},
  note = {Source identifier: 70016337}
}