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[1]
A Strategy for Federal Scienceand Technology to Support Water Availability and Quality in the UnitedStates .2 National Science and Technology Council. http://www.ostp.gov/galleries/NSTC.pdf .
[2]
Facing tomorrow’s challenges-U.S.Geo-logical Survey science in the decade 2007—2017 .2 U.S.Geological Survey. http://pubs.usgs.gov/circ/2007/1309 . 2007