APA (7th ed.) Citation

United States. Congress. House. Committee on Patents & ProQuest (Firm). (1919). Amendment of copyright laws. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Congress. House. Committee on Patents and ProQuest (Firm). Amendment of Copyright Laws. Washington: [publisher not identified], 1919.

MLA (9th ed.) Citation

United States. Congress. House. Committee on Patents and ProQuest (Firm). Amendment of Copyright Laws. [publisher not identified], 1919.

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