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Creator Personal Names
Akers, David J. (David Jackson), 1944-
Remove constraint Creator Personal Names: Akers, David J. (David Jackson), 1944-
All Creators
Akers, David J. (David Jackson), 1944-
Remove constraint All Creators: Akers, David J. (David Jackson), 1944-
Subject Topical
Coal mine waste.
Remove constraint Subject Topical: Coal mine waste.
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