- 2012 Census of Agriculture - United States Department of Agriculture (USDA).
- Census of Agriculture Publications - United States Department of Agriculture (USDA).
- Historical Census Publications, 1840-2007 - United States Department of Agriculture (USDA).
- Census of Agriculture Historical Archive, 1925-1987 - United States Department of Agriculture (USDA).
- Census by State - United States Department of Agriculture (USDA).
- Minnesota, Census of Agriculture - United States Department of Agriculture (USDA).
