Surface crown pillar evaluation for active and abandoned metal mines: Proceedings of the international conference, edited by M.C. Betournay
Contributors: Betournay, M.C.; CANMET.; Canadian Institute of Mining and Metallurgy.; Ontario.  Min. of Northern Development and Mines.
Publisher: Supply and Services Canada
Place of publication: Ottawa
Language: eng
Number of pages: 216
Subjects: Abandoned mines; Mine safety
Notes: Sponsored by CANMET, Canadian Institute of Mining and Metallurgy, and Ontario Ministry of Northern Development and Mines

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