United States. Interstate Commerce Commission. (1935). Operating Revenues and Operating Expenses of Class I Steam Railways in the United States, Jan. 1935. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Operating Revenues and Operating Expenses of Class I Steam Railways in the United States, Jan. 1935. [Washington]: [s.n.], 1935.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Operating Revenues and Operating Expenses of Class I Steam Railways in the United States, Jan. 1935. [s.n.], 1935.
Warning: These citations may not always be 100% accurate.