United States. Interstate Commerce Commission. (1940). Operating Statistics of Large Steam Railways-Selected Items for the Month of Dec. 1940. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Operating Statistics of Large Steam Railways-Selected Items for the Month of Dec. 1940. [Washington]: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Operating Statistics of Large Steam Railways-Selected Items for the Month of Dec. 1940. [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.