United States. Congress. House. Committee on Patents & ProQuest (Firm). (1928). Repeal of Price-Fixing Clause for Mechanical Reproduction: Hearings before the United States House Committee on Patents, Seventieth Congress, first session, on Apr. 3, 4, 10, 11, 1928. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Patents and ProQuest (Firm). Repeal of Price-Fixing Clause for Mechanical Reproduction: Hearings Before the United States House Committee on Patents, Seventieth Congress, First Session, on Apr. 3, 4, 10, 11, 1928. Washington: U.S. G.P.O., 1928.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Patents and ProQuest (Firm). Repeal of Price-Fixing Clause for Mechanical Reproduction: Hearings Before the United States House Committee on Patents, Seventieth Congress, First Session, on Apr. 3, 4, 10, 11, 1928. U.S. G.P.O., 1928.