Keeping livestock healthy /
United States Dept. of Agriculture.
- Washington D.C. : U.S. Dept. of Agriculture, 1942.
- xiii, 1276 p. : ill., maps ; 24 cm.
- Yearbook of agriculture ; 1942 .
- 1942. Yearbook of agriculture (Washington, D.C. : 1926) ; .
Includes bibliographies and index.
Veterinary medicine--United States. Domestic animals. Livestock--Diseases.