000 00330nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a0080430139
082 _a622.2 S617
100 _aSINGH,B
245 0 _aROCK MASS CLASSIFICATION
260 _aAmsterdam
_bElsevier
_c1999
300 _axiii+267p.,24X16Cms.
942 _cBK
_2DDC
999 _c27282
_d27282