000 00330nam a2200121Ia 4500
008 220201s1969 xx 000 0 eng d
082 _bISI
100 _aISI
245 0 _aRecommendations for symbolic designation of direction of closing & faces of doors, windows
260 _aNew Delhi
_bISI
_c1969
300 _a7
942 _2ddc
999 _c20047
_d20047