000 00287nam a2200109Ia 4500
008 220201s1975 xx 000 0 eng d
100 _aIs: 1911-1967
245 0 _aSchdule of unit weight of building material
260 _bIndian Standard Institution
_c1975
300 _a51
942 _2ddc
999 _c80856
_d80856