United States. Interstate Commerce Commission. (1936). Operating Revenues and Operating Expenses by Class of Service, Class I Steam Railways in the United States, Year Ended Dec. 31, 1935. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Operating Revenues and Operating Expenses by Class of Service, Class I Steam Railways in the United States, Year Ended Dec. 31, 1935. [Washington]: [s.n.], 1936.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Operating Revenues and Operating Expenses by Class of Service, Class I Steam Railways in the United States, Year Ended Dec. 31, 1935. [s.n.], 1936.
Warning: These citations may not always be 100% accurate.