National Poultry Improvement Plan (U.S.) & United States. Animal and Plant Health Inspection Service. (2006). National Poultry Improvement Plan: Seventy years of poultry improvement. U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service.
Chicago Style (17th ed.) CitationNational Poultry Improvement Plan (U.S.) and United States. Animal and Plant Health Inspection Service. National Poultry Improvement Plan: Seventy Years of Poultry Improvement. [Riverdale, Md.]: U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, 2006.
MLA (9th ed.) CitationNational Poultry Improvement Plan (U.S.) and United States. Animal and Plant Health Inspection Service. National Poultry Improvement Plan: Seventy Years of Poultry Improvement. U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service, 2006.