http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Regional pollution potential in the northwestern United States
Pacific Northwest Research Station (Portland, Or.)
Title from title screen (viewed on Aug. 28, 2008).
"Based on a 1998 final report for the USDA-FS Northern Region Air Program."
Mode of access: Internet via the USDA Forest Service web site. Address as of 08/28/08: http://www.fs.fed.us/pnw/pubs/gtr590.pdf ; current access available via PURL.
Includes bibliographical references (pages 25-26).