United States. Interstate Commerce Commission. (1934). Freight Commodity Statistics of Class I Steam Railways in the United States, First Quarter, 1934. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Freight Commodity Statistics of Class I Steam Railways in the United States, First Quarter, 1934. [Washington]: [s.n.], 1934.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Freight Commodity Statistics of Class I Steam Railways in the United States, First Quarter, 1934. [s.n.], 1934.
Warning: These citations may not always be 100% accurate.