000 00369nam a2200121Ia 4500
008 220201s1973 xx 000 0 eng d
082 _bISI
100 _aIndian Standard Institute
245 0 _aIS : 1634-1973, Code for practice for design & construction of wood stairs in houses
260 _aNew Delhi
_bIndian Standard Institute
_c1973
300 _a14
942 _2ddc
999 _c17163
_d17163