APA (7th ed.) Citation

United States. Congress. House & United States. Congress. House. Committee on Patents. (1939). Providing a permanent force to classify patents in the Patent Office. [s.n.].

Chicago Style (17th ed.) Citation

United States. Congress. House and United States. Congress. House. Committee on Patents. Providing a Permanent Force to Classify Patents in the Patent Office. Washington: [s.n.], 1939.

MLA (8th ed.) Citation

United States. Congress. House and United States. Congress. House. Committee on Patents. Providing a Permanent Force to Classify Patents in the Patent Office. [s.n.], 1939.