http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Farm numbers and land in farms, final estimates
Farm numbers and land in farms, final estimates by state and United States
National Agricultural Statistics Service.
Farms and land in farms, final estimates by states (Online)
Farms and land in farms, final estimates (2009)
Statistical bulletin (United States. Department of Agriculture)