Secretary's report.

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New Title
Quarterly review.
Previous Title
Safety sentinel: Anthracite Division.
Safety sentinel: Bituminous Coal Division.
Corporate Author
Pennsylvania. Dept. of Environmental Resources.
Related Names
Pennsylvania. Dept. of Mines and Mineral Industries.
Language(s)
English
Published
Harrisburg.
Subjects
Mine accidents > Statistics.
Environmental engineering.
Conservation of natural resources > Pennsylvania.
Coal mine accidents > Pennsylvania.
Note
Issued 19__-1970, by the Pa. Dept. of Mines and Mineral Industries.
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Item Link Original Source
Limited (search only)   1971 Jan. Pennsylvania State University
Limited (search only)   1971 Feb. Pennsylvania State University