000 00296nam a2200121Ia 4500
008 220201s1995 xx 000 0 eng d
082 _a621.56
_bGUR
100 _aGurucharan Singh
245 0 _aRefrigeration & air conditioning
260 _bDelhi: New Age
_c1995
300 _a544
942 _2ddc
999 _c86116
_d86116