United States. Bureau of Entomology. (1912). Insect damage to standing timber in national parks. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology. Insect Damage to Standing Timber in National Parks. [Washington]: GPO, 1912.
MLA (9th ed.) CitationUnited States. Bureau of Entomology. Insect Damage to Standing Timber in National Parks. GPO, 1912.
Warning: These citations may not always be 100% accurate.