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024 _a67270
037 _cTextual
040 _aCSL
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041 _aeng
082 _aD3:2z7, J2
245 0 _aRecent developments of minerals dressing
260 _c1952
300 _ap.
_ccm.
650 _aBuilding engineering
942 _hD3:2z7, J2
_cTEXL
_2CC
999 _c32320
_d32320