00769cam a22002411 4500 agr68000165 DLC 20260227111030.0 711216s1968 dcua 000 0 eng c agr68000165 U.S. Nat'l Agr. Libr. DLC DLC S21 .A6 rev. no. 2166, Apr. 1968 1Ag84F no. 2166 1968 636.4/08 United States. Agricultural Research Service. Animal Husbandry Research Division. Swine production. [Rev. Washington, For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968] 30 p. illus. 24 cm. $0.15 U.S. Dept. of Agriculture. Farmers' bulletin no. 2166 Swine. 12472 12472