000 00314 a2200121 4500
080 _a622
_bHAR
100 _aHartman, Howard L
245 _aIntroductory mining engineering
260 _aNew York
_bJohn Wiley and Sons,c
_c1987
300 _axiii, 633p.
650 _a622
_xMining engineering
942 _cBK
_k622 HAR
999 _c349391
_d349391