http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
environmenal effects on human and wildlife health
U.S. Geological Survey recent highlights : environmenal effects on human and wildlife health
Environmental effects on human and wildlife health
Title from title screen (viewed on July 21, 2004).
Mode of access: Internet from the USGS Web site. Address as of 7/21/04: http://www.usgs.gov/themes/FS-189-97/; current access is available via PURL.
Fact sheet (Geological Survey (U.S.)) ; FS-97-189