共 42 条
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- [6] CONGRESS THREATENS TO ABOLISH US-GEOLOGICAL-SURVEY AND US-BUREAU-OF-MINES (REPRINTED FROM GEOTIMES) PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 1995, 61 (02): : 160 - 160
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- [9] RESEARCH BY THE BUREAU OF MINES ON UNDERGROUND SUPPORT SYSTEMS CIM BULLETIN, 1983, 76 (856): : 20 - 21