000 00322nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.33 L479
100 _aLEE,J.K
245 0 _aBLAST ROUND DESIGN AND CASTING IN SURFACE COAL MINING
260 _aMICHIGAN
_bBell & Howell
_c1987
300 _a22X17
942 _cBK
_2DDC
999 _c23093
_d23093