Taking the pulse of a river system research on the Upper Mississippi River System
Title
Taking the pulse of a river system [electronic resource] : research on the Upper Mississippi River System / product of the Long Term Resource Monitoring Program.
Published
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2009]
Mode of access: Internet from the USGS web site. Address as of 7/7/09: http://pubs.usgs.gov/fs/2009/3045/pdf/fs2009-3045.pdf ; current access available via PURL.