@misc{indiciae2edb7f53a0d5,
  title = {The quality of our Nation's waters: Water quality in principal aquifers of the United States, 1991-2010},
  author = {Leslie A. DeSimone and Peter B. McMahon and Michael R. Rosen},
  year = {2015},
  doi = {10.3133/cir1360},
  url = {https://pubs.usgs.gov/publication/cir1360},
  note = {Source identifier: cir1360}
}