000 00244nam a2200085Ia 4500
008 180131b1981 xxu||||| |||| 00| 0 eng d
080 _a
_b
100 _aIndian Standards Institution
245 _aSp: 20(S & T) - 1981; Explanatory Handbook On Masonry Code
260 _a
_bBIS
_c1981
999 _c49753
_d49753