TY  - RPRT
TI  - Water-resources data for the United States: Water year 2009
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 2009
DO  - 10.3133/wdr2009
UR  - https://pubs.usgs.gov/publication/wdr2009
ID  - wdr2009
ER  -