United States. Interstate Commerce Commission. (1942). Revenue Traffic Statistics of Class I Steam Railways in the United States, Mar. 1942. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Revenue Traffic Statistics of Class I Steam Railways in the United States, Mar. 1942. [Washington]: [publisher not identified], 1942.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Revenue Traffic Statistics of Class I Steam Railways in the United States, Mar. 1942. [publisher not identified], 1942.
Warning: These citations may not always be 100% accurate.