United States. Congress. House. Committee on Patents & ProQuest (Firm). (1920). Protection of Trade Marks: Hearings before the United States House Committee on Patents, Sixty-Sixth Congress, second session, on Feb. 25, 1920. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Patents and ProQuest (Firm). Protection of Trade Marks: Hearings Before the United States House Committee on Patents, Sixty-Sixth Congress, Second Session, on Feb. 25, 1920. Washington: U.S. G.P.O., 1920.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Patents and ProQuest (Firm). Protection of Trade Marks: Hearings Before the United States House Committee on Patents, Sixty-Sixth Congress, Second Session, on Feb. 25, 1920. U.S. G.P.O., 1920.