Before the United States Coal Commission in re an act creating "the United States Coal Commission for the purpose of securing information in connection with questions relative to interstate commerce in coal, and for other purposes" : brief of the Central Pennsylvania Coal Producers' Association and the Association of Bituminous Coal Operators of Central Pennsylvania, Altoona, Penna., June 12, 1923., by Central Pennsylvania Coal Producers' Association et al.

Title:	Before the United States Coal Commission in re an act creating "the United States Coal Commission for the purpose of securing information in connection with questions relative to interstate commerce in coal, and for other purposes" : brief of the Central Pennsylvania Coal Producers' Association and the Association of Bituminous Coal Operators of Central Pennsylvania, Altoona, Penna., June 12, 1923.
Author:	Central Pennsylvania Coal Producers' Association
Author:	United States. Coal Commission
Author:	Association of Bituminous Coal Operators of Central Pennsylvania
Note:	[publisher not identified], 1923

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Subject:	Coal miners
Subject:	Coal miners -- Pennsylvania
Subject:	Coal trade
Subject:	Coal trade -- Pennsylvania
Subject:	Pennsylvania
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