A modified siphon sampler for shallow water [electronic resource] / by Timothy H. Diehl ; prepared in cooperation with the Tennessee Department of Transportation.
Mode of access: Internet from the USGS web site. Address as of 1/28/08: http://pubs.usgs.gov/sir/2007/5282/pdf/sir20075282.pdf; current access via PURL.
Note
Title from title screen (viewed on Jan. 28, 2008).
