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Creator Personal Names
Selvig, W. A. (Walter Alfred), 1886-1972.
Remove constraint Creator Personal Names: Selvig, W. A. (Walter Alfred), 1886-1972.
All Subjects
Coal--West Virginia--Analysis.
Remove constraint All Subjects: Coal--West Virginia--Analysis.
Subject Topical
Combustion.
Remove constraint Subject Topical: Combustion.
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