An interdisciplinary assessment of regional-scale nonpoint source ground-water vulnerability : theory and application /
Bernknopf, Richard L.(Richard Lewis)
Dinitz, Laura B.
Loague, Keith M.(Keith Michael),1951-
Washington, DC : U.S. G.P.O. ; Denver, CO : USGS Information Services, ;
2001.
Includes bibliographical references (p. 10-11)
Water
Agricultural chemicals
Nonpoint source pollution
Geographic information systems
Water quality management
Water quality management
Also available via Internet from the USGS Web site (PDF file). Address as of 3-19-02: http://geopubs.wr.usgs.gov/prof-paper/pp1645/pp1645.pdf; current access is available via PURL.