APA (7th ed.) Citation

United States. Interstate Commerce Commission. (1941). Freight Commodity Statistics of Class I Steam Railways in the United States, Calendar Year 1941. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Interstate Commerce Commission. Freight Commodity Statistics of Class I Steam Railways in the United States, Calendar Year 1941. [Washington]: [publisher not identified], 1941.

MLA (9th ed.) Citation

United States. Interstate Commerce Commission. Freight Commodity Statistics of Class I Steam Railways in the United States, Calendar Year 1941. [publisher not identified], 1941.