APA
U.S. Department of Agriculture, . (1977). Economic Effects of the 1976 Beef Grade Changes.Technical Bulletin No. 1570. : U.S. Department of Agriculture.
Chicago
U.S. Department of Agriculture, . 1977. Economic Effects of the 1976 Beef Grade Changes.Technical Bulletin No. 1570. : U.S. Department of Agriculture.
Harvard
U.S. Department of Agriculture, . (1977). Economic Effects of the 1976 Beef Grade Changes.Technical Bulletin No. 1570. : U.S. Department of Agriculture.
MLA
U.S. Department of Agriculture, . Economic Effects of the 1976 Beef Grade Changes.Technical Bulletin No. 1570. : U.S. Department of Agriculture. 1977.