(2016). PPQ-international plant health management. United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine.
Chicago Style (17th ed.) CitationPPQ-international Plant Health Management. [Washington, D.C.]: United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 2016.
MLA (9th ed.) CitationPPQ-international Plant Health Management. United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, 2016.
Warning: These citations may not always be 100% accurate.