http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Agricultural resources and environmental indicators
Agricultural resources and environmental indicators (United States. Department of Agriculture. Economic Research Service. Online)
U.S. Dept. of Agriculture, Economic Research Service
Mode of access: Internet from the USDA ERS web site. Previously available as of 9/24/04: http://www.ers.usda.gov/publications/arei/index.htm; current access is available via PURL.
United States. Department of Agriculture. Economic Research Service.
Agriculture handbook (United States. Department of Agriculture)
Economic Research Service, 1800 M St., NW, Washington, DC 20036-5831