United States. Forest Health Protection. Forest insect and disease conditions in the United States. U.S. Dept. of Agriculture, Forest Service, Forest Health Protection.
Chicago Style (17th ed.) CitationUnited States. Forest Health Protection. Forest Insect and Disease Conditions in the United States. [Washington, D.C.]: U.S. Dept. of Agriculture, Forest Service, Forest Health Protection.
MLA (9th ed.) CitationUnited States. Forest Health Protection. Forest Insect and Disease Conditions in the United States. U.S. Dept. of Agriculture, Forest Service, Forest Health Protection.
Warning: These citations may not always be 100% accurate.