United States. Bureau of Entomology and Plant Quarantine. (1938). Fumigation of baled cotton with hydrocyanic acid for pink bollworm. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Fumigation of Baled Cotton with Hydrocyanic Acid for Pink Bollworm. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Fumigation of Baled Cotton with Hydrocyanic Acid for Pink Bollworm. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.