000 00318nam a2200121Ia 4500
008 220201s9999 xx 000 0 eng d
082 _bBIS
100 _aBurean of India Standerdes
245 0 _a15-2116-1980 specification sand for maronry mortars
260 _aNew Delhi
_bB I S
_cMar-81
300 _a8
942 _2ddc
999 _c28401
_d28401