000			00363nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
100			_aHartman Howard L.
245		0	_aMining engineering.
260			_aNULL
260			_bJohn Wiley And Sons.
260			_c1987
300			_a633p.
365			_b306.5
650			_aCIVIL
942			_cDBK
999			_c22428 _d22428