United States. Bureau of Entomology and Plant Quarantine. (1942). Fruitflies of genus Anastrepha. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Fruitflies of Genus Anastrepha. [Washington]: [s.n.], 1942.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Fruitflies of Genus Anastrepha. [s.n.], 1942.
Warning: These citations may not always be 100% accurate.