000			004250000a22001690004500
245			_aMine investment analysis
100			_aGentry, Donald W.
100			_aO'Neil, Thomas J.
260			_aNew York _bAmerican Institute of Mining _c1984
300			_avii, 502p. : ill.
500			_aA photocopy
020			_a0895204290
080			_a622.003 _bG4
650			_aMINES AND MINING-COSTS
041			_aEN
942			_cBK
999			_c59154 _d59154