APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1938). Horseflies of subfamily Tabaninae of Nearctic region. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Horseflies of Subfamily Tabaninae of Nearctic Region. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Horseflies of Subfamily Tabaninae of Nearctic Region. [s.n.], 1938.