United States. National Agricultural Statistics Service. (1990). Farm numbers, land in farms. The Service.
Chicago Style (17th ed.) CitationUnited States. National Agricultural Statistics Service. Farm Numbers, Land in Farms. Washington, D.C.: The Service, 1990.
MLA (9th ed.) CitationUnited States. National Agricultural Statistics Service. Farm Numbers, Land in Farms. The Service, 1990.
Warning: These citations may not always be 100% accurate.