Conditions in the coal fields of Pennsylvania, West Virginia, and Ohio. Hearing before the Committee on Interstate Commerce, United States Senate, Seventieth Congress, first session, pursuant to S. Res. 105, a resolution to investigate conditions in the coal fields of Pennsylvania, West Virginia, and Ohio. February 10, 1928
Print Book, English, 1928
U.S. Govt. Print. Off., Washington, D.C., 1928
2 v. : plates, tables, diagrs. (part fold.) forms ; 24 cm.
181078917
Issued also in separate numbered parts
James E. Watson, chairman