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- catalog contributor b8901395.
- catalog created "1929.".
- catalog date "1929".
- catalog date "1929.".
- catalog dateCopyrighted "1929.".
- catalog extent "ii. 24 p.".
- catalog isPartOf "United States. Department of Commerce. Bureau of Mines. Technical Paper 448".
- catalog issued "1929".
- catalog issued "1929.".
- catalog language "eng".
- catalog publisher "Washington, U. S. Govt. print. off.,".
- catalog subject "Coal mines and mining Safety measures.".
- catalog subject "Mine explosions.".
- catalog subject "TN1 .U6 no. 448".
- catalog title "Coal-dust explosions in mines: causes, effects, and recommendations for prevention ...".
- catalog type "text".