Quality-assurance plan for water-quality activities in the U.S. Geological Survey Washington Water Science Center [electronic resource] / compiled by Richard J. Wagner, Robert A. Kimbrough, and Gary L. Turney.
Mode of access: Internet from the USGS web site. Address as of 11/5/07: http://pubs.usgs.gov/of/2007/1307/pdf/ofr20071307.pdf; current access via PURL.
Note
Title from PDF title screen (viewed on Oct. 2, 2007).