APA (7th ed.) Citation

United States. Bureau of Entomology. (1910). Western grass-stem sawfly (Cephus occidentalis Riley and Marlatt.). [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology. Western Grass-stem Sawfly (Cephus Occidentalis Riley and Marlatt.). [Washington]: [publisher not identified], 1910.

MLA (9th ed.) Citation

United States. Bureau of Entomology. Western Grass-stem Sawfly (Cephus Occidentalis Riley and Marlatt.). [publisher not identified], 1910.

Warning: These citations may not always be 100% accurate.