APA (7th ed.) Citation

United States. Bureau of Public Roads. (1934). Roadside improvement. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Public Roads. Roadside Improvement. [Washington]: [s.n.], 1934.

MLA (9th ed.) Citation

United States. Bureau of Public Roads. Roadside Improvement. [s.n.], 1934.