United States. Congress. Senate. Committee on the District of Columbia. (1970). Water supply facilities of the National Capital region: Hearing before the Committee on the District of Columbia, United States Senate, Ninety-first Congress, first session, on S. 3009. December 2, 1969. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia. Water Supply Facilities of the National Capital Region: Hearing Before the Committee on the District of Columbia, United States Senate, Ninety-first Congress, First Session, on S. 3009. December 2, 1969. Washington: U.S. Government Printing Office, 1970.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia. Water Supply Facilities of the National Capital Region: Hearing Before the Committee on the District of Columbia, United States Senate, Ninety-first Congress, First Session, on S. 3009. December 2, 1969. U.S. Government Printing Office, 1970.