Description
Item Description:Title from PDF title screen (viewed on Nov. 20, 2003).
Electronic resource.
Format:System requirements: Adobe Acrobat Reader.
Mode of access: Internet from the USGS web site. Address as of 03/01/04: http://pubs.water.usgs.gov/ofr03344.pdf; current access available via PURL.
Bibliography:Includes bibliographical references.