United States. Forest Service. Southwestern Region & White, M. R. (2008). Field guide to noxious and invasive weeds: Known to occur or are potentially occurring on the Apache-Sitgreaves National Forests. U.S. Dept. of Agriculture, Forest Service, Southwestern Region.
Chicago Style (17th ed.) CitationUnited States. Forest Service. Southwestern Region and Mitchel R. White. Field Guide to Noxious and Invasive Weeds: Known to Occur or Are Potentially Occurring on the Apache-Sitgreaves National Forests. [Albuquerque, N.M.]: U.S. Dept. of Agriculture, Forest Service, Southwestern Region, 2008.
MLA (9th ed.) CitationUnited States. Forest Service. Southwestern Region and Mitchel R. White. Field Guide to Noxious and Invasive Weeds: Known to Occur or Are Potentially Occurring on the Apache-Sitgreaves National Forests. U.S. Dept. of Agriculture, Forest Service, Southwestern Region, 2008.