000			00309nam a2200121Ia 4500
008			210430s9999 xx 000 0 und d
082			_a622 H254I
100			_aHartman Howard L _954965
245			_aIntroductory Mining Engineering _cHartman Howard L
260			_c1987
300			_a633p.
942			_cBK _2ddc
999			_c565893 _d565893