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008 170401b xxu||||| |||| 00| 0 eng d
020 _a81-86772-10-3
041 _aeng
100 _aGUPTA , M L ,PANDEY,J.K
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245 _aMINE VENTILATION,SAFETY AND ENVIRONMENT
300 _a648
650 _aMINNING
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942 _cBK
999 _c5384
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