United States. Bureau of Entomology and Plant Quarantine. (1939). Mobile insect℗Ư-collecting trap. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Mobile Insect℗Ư-collecting Trap. [Washington]: [s.n.], 1939.
MLA (9th ed.) CitationUnited States. Bureau of Entomology and Plant Quarantine. Mobile Insect℗Ư-collecting Trap. [s.n.], 1939.
Warning: These citations may not always be 100% accurate.