United States. Congress. House. Committee on Interstate and Foreign Commerce & ProQuest (Firm). (1926). Coal: Hearings before the United States House Committee on Interstate and Foreign Commerce, Sixty-Ninth Congress, first session, on Mar. 5, 6, 13, 14, 1926. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Interstate and Foreign Commerce and ProQuest (Firm). Coal: Hearings Before the United States House Committee on Interstate and Foreign Commerce, Sixty-Ninth Congress, First Session, on Mar. 5, 6, 13, 14, 1926. Washington: U.S. G.P.O., 1926.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Interstate and Foreign Commerce and ProQuest (Firm). Coal: Hearings Before the United States House Committee on Interstate and Foreign Commerce, Sixty-Ninth Congress, First Session, on Mar. 5, 6, 13, 14, 1926. U.S. G.P.O., 1926.