Quantitative mineralogical analysis of rock-dusting materials and survey of some coal-measure shales of western Pennsylvania
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書誌事項
Quantitative mineralogical analysis of rock-dusting materials and survey of some coal-measure shales of western Pennsylvania
（Bulletins of Mining and metallurgical investigations, 21）
Carnegie Institute of Technology, 1925
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注記
Includes index
"Under auspices of Carnegie Institute of Technology, United States Bureau of Mines, and Mining and Metallurgical Advisory Boards
With: a separately titled chapter, Chemical analysis of rock-dusting materials, by W. A. Selvig