Beaver and Mahoning rivers, Pa. and Ohio.
Subtitle: Hearings before the Committee on rivers and harbors, House of representatives, Seventy-seventh Congress, first session, on the subject of the improvement of the Beaver and Mahoning rivers, Pa. and Ohio, September 30, October 1, 2, 3, and 6, 1941.
Publisher: U.S. Govt. print off.
Published: 1941
Place of publication: Washington
Language: eng
Number of pages: 511
Subjects: Beaver River (Pa.); Mahoning River (Ohio and Pa.)
Notes: Available also in microform in CIS US congressional committee hearings, accession number (77)H928-6.