United States. Congress. Senate. Committee on the District of Columbia & ProQuest (Firm). (1969). Water Supply Facilities of the National Capital Region: Hearings before the United States Senate Committee on the District of Columbia, Ninety-First Congress, first session, on Dec. 2, 1969. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia and ProQuest (Firm). Water Supply Facilities of the National Capital Region: Hearings Before the United States Senate Committee on the District of Columbia, Ninety-First Congress, First Session, on Dec. 2, 1969. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia and ProQuest (Firm). Water Supply Facilities of the National Capital Region: Hearings Before the United States Senate Committee on the District of Columbia, Ninety-First Congress, First Session, on Dec. 2, 1969. U.S. G.P.O., 1969.