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Some studies on emergency mine communications
Acid mine water in the anthracite region of Pennsylvania
Acid-Mine-Drainage Problems: Anthracite Region of Pennsylvania
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Published Year
1940-1949 (2)
1950-1959 (1)
Subject
Acid mine drainage--Pennsylvania (1)
Anthracite coal--Pennsylvania (1)
Mine communication systems (1)
Mine drainage. (1)
Mine safety--Equipment and supplies (1)
Radio in mining (1)
Water -- Composition. (1)
Water -- Pollution. (1)
Author
Felegy, E. W. (3) *
Ash, S. H. (Simon Harry), b. 1889 (1)
Coggeshall, E. J. (1)
Harrison, L. H. (1)
Johnson, Leland H. (1)
Kennedy, D. O. (1)
Westfield, James. (1)
