USGS tracks acid rain - Gordon, J. D.; Nilles, Mark A.; Schroder, L. J.; Geological Survey (U.S.) ([Reston, Va.] : U.S. Geological Survey, 1995)
Title from PDF title screen (viewed on Jan. 13, 2005).
"October 1995."
Includes bibliographical references.
Mode of access: Internet from the USGS Web site. Address as of 01/13/05: http://bqs.usgs.gov/precip/reports/arfs.htm; current access is available via PURL.
Keywords: National Atmospheric Deposition Program and National Trends Network (U.S.); Acid deposition -- United States; Acid rain -- United States