Conditions in bituminous coal and lignite mines.

Bibliographic Details

Corporate Authors:	United States. Congress. Senate. Committee on Public Lands, ProQuest (Firm), United States. Department of the Interior
Format:	eBook
Language:	English
Published:	Washington : [publisher not identified], 1947.
Series:	United States congressional serial set.
Subjects:	Coal mines and mining. Mines and mineral resources. Work environment. Electronic books.
Online Access:	Connect to the full text of this electronic book