000 00381nam a22001337a 4500
008 160404b xsy||||| |||| 00| 0 eng d
082 _a624,1513
100 1 _aStagg, K . G.
_940115
245 1 _aRock mechanics in engineering practice\
_cK G Sttag.
260 _aLondon:
_bJohn Wiley,
_c1969AD.
300 _a442P. :
_bill;
_c24cm.
650 _areference.
_940116
942 _2ddc
_cBK
999 _c297372
_d297372