Water supply policy and programs in the Washington metropolitan region oversight hearings before the Subcommittee on Economic Development and Regional Affairs of the Committee on the District of Columbia, House of Representatives, Ninety-fifth Congress, second session ... January 25, 30, and February 1, 1978

"Water supply policy and programs in the Washington metropolitan region : oversight hearings before the Subcommittee on Economic Development and Regional Affairs of the Committee on the District of Columbia, House of Representatives, Ninety-fifth Congress, second session ... January 25, 30, and February 1, 1978"
"Water supply policy and programs in the Washington metropolitan region oversight hearings before the Subcommittee on Economic Development and Regional Affairs of the Committee on the District of Columbia, House of Representatives, Ninety-fifth Congress, second session ... January 25, 30, and February 1, 1978"@en