@misc{indiciaee465adb5ceef,
  title = {Arsenic in Ground-Water Resources of the United States},
  author = {Alan H. Welch and Sharon A. Watkins and Dennis R. Helsel and Michael J. Focazio},
  year = {2000},
  doi = {10.3133/fs06300},
  url = {https://pubs.usgs.gov/publication/fs06300},
  note = {Source identifier: fs06300}
}