000 00379nam a22001457a 4500
020 _qHB.
040 _cFIZZA ISHAQ
082 _a624.151
_bSIN
100 _aSINGH, B.
_989294
245 _aROCK MASS CLASSIFICATION A PRACTICAL APPROACH IN CIVIL /
_cB. SINGH.
250 _a1st ED.
260 _aLONDON ;
_bELSEVIER SCIENCE,
_c1999.
300 _a267 P. ;
942 _2ddc
_cBK
999 _c588079
_d588079