000 00295nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _bISI
100 _aISI
245 0 _aMethod of test for toughness of natural building stones
260 _aNew Delhi
_bISI
_c1969
300 _a5
942 _2ddc
999 _c20065
_d20065