000 00317nam a2200133Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a621.56
100 _aSarao & Gabbi
245 0 _aRefrigeration & airconditioning
250 _a4
260 _bNew Delhi : Satya prakashan
_c1992
300 _a345
942 _2ddc
999 _c84924
_d84924