000 00330nam a2200109Ia 4500
008 180713s9999 xx 000 0 und d
082 _a624
_bISI-I
245 0 _aINDIAN STANDARD RECOMMENDATION FOR USE OF POLYETHYLENE FILM FOR WATERPROFFING OF ROOFS
_b: ISI NO.7290-1979
260 _aND
_bISI
_c1976
270 _aLUCKNOW
942 _cGB
999 _c2379
_d2379