Quality-assurance plan for water-quality activities of the U.S. Geological Survey Montana Water Science Center [electronic resource] / compiled by John H. Lambing.
Mode of access: Internet from the USGS web site. Address as of 10/1/07: http://pubs.usgs.gov/of/2006/1275/pdf/ofr2006-1275.pdf; current access via PURL.
Note
Title from PDF title screen (viewed on Dec. 5, 2006).