000 00328nam a2200121Ia 4500
008 220201s9999 xx 000 0 eng d
082 _bBIS
100 _aBurean of India Standerdes
245 0 _a15269-1989-6 ordinary portland cencert 33 grade specification
260 _aNew Delhi
_bB I S
_cJan-90
300 _a7
942 _2ddc
999 _c28380
_d28380