APA (7th ed.) Citation

United States. Forest Service. Pacific Southwest Region. (2015). Bark beetles in California conifers: Are your trees susceptible? Forest Service, United States Department of Agriculture, Pacific Southwest Region.

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Southwest Region. Bark Beetles in California Conifers: Are Your Trees Susceptible? [San Francisco, Calif.]: Forest Service, United States Department of Agriculture, Pacific Southwest Region, 2015.

MLA (8th ed.) Citation

United States. Forest Service. Pacific Southwest Region. Bark Beetles in California Conifers: Are Your Trees Susceptible? Forest Service, United States Department of Agriculture, Pacific Southwest Region, 2015.