APA (7th ed.) Citation

United States. Congress. Senate. Committee on Interstate Commerce & ProQuest (Firm). (1939). Study of the telegraph industry. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Study of the Telegraph Industry. Washington: [publisher not identified], 1939.

MLA (9th ed.) Citation

United States. Congress. Senate. Committee on Interstate Commerce and ProQuest (Firm). Study of the Telegraph Industry. [publisher not identified], 1939.

Warning: These citations may not always be 100% accurate.