Conditions in the coal fields of Pennsylvania, West Virginia, and Ohio.
Subtitle: Hearings ... Seventieth Congress, first session, on S. Res. 105 ...
Publisher: U.S. Govt. Print. Off.
Published: 1928
Place of publication: Washington
Language: eng
Subjects: Coal mines and mining
Notes: James E. Watson, chairman.

Hearings held Feb. 23-27, Mar. 27-Apr. 18, 1928.