APA
U.S. Department of Agriculture, . (1970). Indices of agricultural production, 1960-1969. Washington, D.C: Department of Agriculture.
Chicago
U.S. Department of Agriculture, . 1970. Indices of agricultural production, 1960-1969. Washington, D.C: Department of Agriculture.
Harvard
U.S. Department of Agriculture, . (1970). Indices of agricultural production, 1960-1969. Washington, D.C: Department of Agriculture.
MLA
U.S. Department of Agriculture, . Indices of agricultural production, 1960-1969. Washington, D.C: Department of Agriculture. 1970.