000 00291nam a2200121Ia 4500
008 160710s1967 xx 000 0 und d
082 _aBIS
100 _aBISHOP,FREEMAN
245 _aMINING ENGINEERNG
260 _bSOCIETY OF THE MINING ENGINEERING
_c1967
300 _a94
942 _2ddc
_cB
999 _c34243
_d34243