000			00351nam a2200157Ia 4500
005			20250425161505.0
008			250425s9999 xx 000 0 und d
041			_aeng
082			_a669
245		0	_aPRINCIPLES OF EXTRACTIVE METALLURGY
250			_aS.E.
260			_aS.L.
260			_aSin Pais _bMCGH _c1983
942			_c01
010			_a21484
999			_c210309 _d210309