1. Herd health: food animal production medicine;Radostits,1995
2. Biosecurity: a new concept for producers;Tremblay,1995
3. Biosecurity—a new term for an old concept: how to apply it;Anderson;Bovine Practitioner,1998
4. Biosecurity: protecting your cow-calf operation. Cow-calf management guide;England,2001
5. Idaho Beef Quality Assurance Program;Gloze,2002