United States. Bureau of Entomology. (1912). Hydrocyanic-acid gas against household insects. GPO.
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology. Hydrocyanic-acid Gas Against Household Insects. [Washington]: GPO, 1912.
MLA (9th ed.) CitationUnited States. Bureau of Entomology. Hydrocyanic-acid Gas Against Household Insects. GPO, 1912.
Warning: These citations may not always be 100% accurate.