United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. National detector dog manual. U.S. Dept. of Agriculture, Marketing and Regulatory Programs, Animal and Plant Health Inspection Service, Plant Protection and Quarantine.
Chicago Style (17th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. National Detector Dog Manual. [Washington, D.C.]: U.S. Dept. of Agriculture, Marketing and Regulatory Programs, Animal and Plant Health Inspection Service, Plant Protection and Quarantine.
MLA (9th ed.) CitationUnited States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. National Detector Dog Manual. U.S. Dept. of Agriculture, Marketing and Regulatory Programs, Animal and Plant Health Inspection Service, Plant Protection and Quarantine.