000 00299nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.13 W728
100 _aWILLIAMS,W.R
245 0 _aMINE MAPPING AND LAYOUT
260 _aNew Jersey
_bPrentice Hall
_c1983
300 _a24X18
942 _cBK
_2DDC
999 _c19715
_d19715