TY  - RPRT
TI  - Arsenic in Ground-Water Resources of the United States
AU  - Alan H. Welch
AU  - Sharon A. Watkins
AU  - Dennis R. Helsel
AU  - Michael J. Focazio
PY  - 2000
DO  - 10.3133/fs06300
UR  - https://pubs.usgs.gov/publication/fs06300
ID  - fs06300
ER  -