000 00313nam a2200109Ia 4500
008 220201s1961 xx 000 0 eng d
100 _aIndian Standrard Institute
245 0 _aDetermination of resistance to wear by abrasion of natural building stones-1706
260 _bDelhi
_c1961
300 _a7
942 _2ddc
999 _c72675
_d72675