Historical résumé of mine and tunnel ventilation studies Bureau of Mines, 1910-1949
By: by G.E. McElroy.
Contributors: United States. Bureau of Mines.
Series: Information circular (United States. Bureau of Mines) -- 7556
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1950
Place of publication: Washington, DC
Language: eng
Number of pages: 16
Notes: 1