Why men were killed at Pennsylvania anthracite mines in 1950
By: by J.J. Forbes and H.F. Weaver.
Contributors: Weaver, H.F.; United States. Bureau of Mines.
Series: Information circular (United States. Bureau of Mines) -- 7609
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1951
Place of publication: Washington, DC
Language: eng
Number of pages: 13
Notes: 1