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999 _c7178
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040 _aUPES LIBRARY
_bEnglish
082 _a622
_bPRA
100 _aPrasad, N
_940327
245 3 _aExperience of longwall mining in India : a practitioner's handbook and approach
260 _aDhanbad:
_bLovely Prakashan,
_c2004
300 _a184p.
650 _aMining
_940328
942 _cBK