Comparison of earnings and wage rates in the anthracite and bituminous mines of Pennsylvania
By: presented by W. Jett Lauck on behalf of United Mine Workers of America.
Contributors: United States. Anthracite Coal Commission.; United Mine Workers of America.
Publisher: [s.n.]
Published: 1920
Place of publication: Washington
Language: eng
Number of pages: 20
Subjects: Wages -- Pennsylvania.; Coal miners -- Pennsylvania.
Notes: At head of title : Before the United States Anthracite Coal Commission.