000			00316nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a553
100			_aYoung,George J.
245			_aElements of mining. 4th ed.
260			_aNY _bMcGraw-Hill _c1946
300			_a755
650			_aGeology , Mines
942			_2ddc _cBK
999			_c3046 _d3046