000 00319nam a2200109Ia 4500
008 180713s9999 xx 000 0 und d
082 _a624
_bISI-I
245 0 _aINDIAN STANDARD SPECIFICATION FOR TIMBER DOOR, WINDOW AND VENTILATOR FRAMES
_b: ISI NO 4021-1983
260 _aND
_bISI
_c1974
270 _aLUCKNOW
942 _cGB
999 _c2452
_d2452