Monongahela River, Pa. :
hearings on the subject of the improvement of Monongahela River, Pa., held before the Committee on Rivers and Harbors, House of Representatives, Sixty-seventh Congress, second session ... May 4, 1922.
|Corporate Author:||United States.|
Washington : G.P.O., 1922.
Monongahela River (W. Va. and Pa.)
5 p. ;
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