000 00324nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a1482219925
082 _a622.2 W9834
100 _aWYLLIE,D.C.
245 0 _aROCK FALL ENGINEERING
260 _aNEW YORK
_bCRC
_c2015
300 _axv+243p.,26x18Cms.
942 _cBK
_2DDC
999 _c41673
_d41673