United States. Bureau of Entomology and Plant Quarantine. (1939). Basis for treatment of products where fruitflies are involved as condition for entry into United States. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Basis for Treatment of Products Where Fruitflies Are Involved as Condition for Entry into United States. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Basis for Treatment of Products Where Fruitflies Are Involved as Condition for Entry into United States. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.