United States. Congress. Senate. Committee on Interstate Commerce & ProQuest (Firm). (1939). Investigation of handling express and freight traffic by railroads. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Investigation of Handling Express and Freight Traffic by Railroads. Washington: [publisher not identified], 1939.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Investigation of Handling Express and Freight Traffic by Railroads. [publisher not identified], 1939.
Warning: These citations may not always be 100% accurate.