United States. Interstate Commerce Commission. (1940). Motive Power and Car Equipment of Class I Steam Railways in the United States, July 1940. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Interstate Commerce Commission. Motive Power and Car Equipment of Class I Steam Railways in the United States, July 1940. [Washington]: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. Interstate Commerce Commission. Motive Power and Car Equipment of Class I Steam Railways in the United States, July 1940. [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.