Description
Item Description:Title from title screen (viewed on Aug. 27, 2008).
"December 2001."
Electronic resource.
Physical Description:4 unnumbered pages : digital, PDF file.
Format:Mode of access: Internet from the USGS web site. Address as of 8/27/08: http://sd.water.usgs.gov/nawqa/pubs/factsheet/fs089.01.pdf ; current access available via PURL.
Bibliography:Includes bibliographical references (page [4]).