APA
U.S. Department of Agriculture, . (1966). Power requirements and costs for high-capacity cotton gins. Washington, D.C: U.S. Department of Agriculture.
Chicago
U.S. Department of Agriculture, . 1966. Power requirements and costs for high-capacity cotton gins. Washington, D.C: U.S. Department of Agriculture.
Harvard
U.S. Department of Agriculture, . (1966). Power requirements and costs for high-capacity cotton gins. Washington, D.C: U.S. Department of Agriculture.
MLA
U.S. Department of Agriculture, . Power requirements and costs for high-capacity cotton gins. Washington, D.C: U.S. Department of Agriculture. 1966.