http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Forest Pest Management, Forest Service, U.S. Department of Agriculture.
Agriculture handbook (United States. Dept. of Agriculture)
Agriculture handbook (United States. Department of Agriculture)
Supt. of Docs., U.S. Govt. Print. Off., Washington, D.C. 20402