United States. Bureau of Agricultural Economics. (1933). Utilization and cost of power on corn belt farms. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Agricultural Economics. Utilization and Cost of Power on Corn Belt Farms. [Washington]: [s.n.], 1933.
MLA (9th ed.) CitationUnited States. Bureau of Agricultural Economics. Utilization and Cost of Power on Corn Belt Farms. [s.n.], 1933.
Warning: These citations may not always be 100% accurate.