External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network, 2000-2001 [electronic resource] / by Gregory A. Wetherbee, Natalie E. Latysh, and John D. Gordon.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2004.
Mode of access: Internet at the USGS web site. Address as of 9/29/08: http://pubs.usgs.gov/sir/2004/5034/pdf/SIR2004-5034.pdf ; current access is available via PURL.
Note
Title from PDF title screen (viewed Jan. 31, 2005).
