Coal mine illumination
Subtitle: proceedings, Bureau of Mines Technology Transfer Seminars.
Series: Information circular - Bureau of Mines ; 8709; Information circular (United States. Bureau of Mines) -- 8709.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1976
Place of publication: [Washington]
Language: eng
Number of pages: 82
Subjects: Coal mines and mining -- United States -- Congresses.; Mine lighting -- Congresses.
Notes: Seminars held in: Pittsburgh, Pa., Nov. 4, 1975; St. Louis, Mo., Nov. 6, 1975; Denver, Colo., Nov. 11, 1975.