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Creator Personal Names
Gleim, E. J. (Ernest J.)
Remove constraint Creator Personal Names: Gleim, E. J. (Ernest J.)
All Creators
Gleim, E. J. (Ernest J.)
Remove constraint All Creators: Gleim, E. J. (Ernest J.)
Subject Topical
Mine safety--United States.
Remove constraint Subject Topical: Mine safety--United States.
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