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Changes in the U.S. beef cow-calf industry, 1993-1997. Part IV
- National Animal Health Monitoring System (U.S.) and United States Animal and Plant Health Inspection Service. Veterinary Services.
- Beef cattle -- Cow-calf system, Beef cattle -- Health -- United States -- Statistics, beef cattle, cow-calf operations, animal health, and United States
- U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, Veterinary Services
- USDA publications