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Coal mines and mining Explosives Testing. (Término temático)
Machine generated authority record.
Work cat.: (OSt)0: Mainiero, Richard J. 2386, Use of sheathed explosive charges on longwalls /, 1989.
Machine generated authority record.
Work cat.: (OSt)0: Mainiero, Richard J. 2386, Use of sheathed explosive charges on longwalls /, 1989.