United States. Animal and Plant Health Inspection Service. (2004). Plant Protection and Quarantine: Safeguarding America's harvest and environment. USDA Animal and Plant Health Inspection Service.
Chicago Style (17th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine: Safeguarding America's Harvest and Environment. [Washington, D.C.?]: USDA Animal and Plant Health Inspection Service, 2004.
MLA (9th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine: Safeguarding America's Harvest and Environment. USDA Animal and Plant Health Inspection Service, 2004.
Warning: These citations may not always be 100% accurate.