000 00387nam a2200121Ia 4500
082 _aIS Code
_bI.S.I
100 _aIndian Standards Institution[ISI]
245 _aIS:6523-1983. Indian standard specification for precast reinforced concrete doors and window frames.
260 _aNew Delhi
_bIndian Standards Institution
_c1983
300 _a19p.
500 _aENG
890 _aIndia
999 _c19226
_d19226