@misc{indiciae8d14a544f838,
  title = {Estimated mean annual natural ground-water recharge in the conterminous United States},
  author = {David M. Wolock},
  year = {2003},
  doi = {10.3133/ofr03311},
  url = {https://pubs.usgs.gov/publication/ofr03311},
  note = {Source identifier: ofr03311}
}