APA (7th ed.) Citation

United States. Public Roads Administration. (1939). Report of chief of Bureau of Public Roads, [fiscal year] 1939. [s.n.].

Chicago Style (17th ed.) Citation

United States. Public Roads Administration. Report of Chief of Bureau of Public Roads, [fiscal Year] 1939. [Washington]: [s.n.], 1939.

MLA (9th ed.) Citation

United States. Public Roads Administration. Report of Chief of Bureau of Public Roads, [fiscal Year] 1939. [s.n.], 1939.

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