000 00304nam a2200121Ia 4500
008 220201s9999 xx 000 0 eng d
082 _bBIS
100 _aBurean of India Standerdes
245 0 _a15-1414-1989 fixing of well covering
260 _aNew Delhi
_bB I S
_cDec-89
300 _a11
942 _2ddc
999 _c28387
_d28387