United States. Congress. Senate. Committee on Foreign Relations & ProQuest (Firm). (1928). International Radiotelegraph Convention: Hearings before the United States Senate Committee on Foreign Relations, Seventieth Congress, first session, on Mar. 14, 1928. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations and ProQuest (Firm). International Radiotelegraph Convention: Hearings Before the United States Senate Committee on Foreign Relations, Seventieth Congress, First Session, on Mar. 14, 1928. Washington: U.S. G.P.O., 1928.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Foreign Relations and ProQuest (Firm). International Radiotelegraph Convention: Hearings Before the United States Senate Committee on Foreign Relations, Seventieth Congress, First Session, on Mar. 14, 1928. U.S. G.P.O., 1928.