000 00305nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.2 O125
100 _aOBERT,L
245 0 _aROCK MECHANICS AND DESIGN OF STRUCTURES IN ROCK
260 _aLONDON
_bWiley
_c1967
300 _a23X15
942 _cBK
_2DDC
999 _c17012
_d17012