United States. Animal and Plant Health Inspection Service.
[Riverdale, MD] : Quarantine Policy, Analysis and Support, Plant Protection and Quarantine, Animal and Plant Health Inspection Service, U.S. Department of Agriculture, [2007]
2007
United States. Animal and Plant Health Inspection Service.
[Riverdale, MD] : U.S. Dept. of Agriculture, Marketing and Regulatory Programs, Animal and Plant Health Inspection Service, [2003]
2003