United States. Bureau of Entomology. (1899). Common squash bug (Anasa tristis DeG.). [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Entomology. Common Squash Bug (Anasa Tristis DeG.). [Washington]: [publisher not identified], 1899.
MLA (9th ed.) CitationUnited States. Bureau of Entomology. Common Squash Bug (Anasa Tristis DeG.). [publisher not identified], 1899.
Warning: These citations may not always be 100% accurate.