000 00320nam a2200121Ia 4500
008 220201s1968 xx 000 0 eng d
082 _a621.56
_bREF
100 _aNA
245 0 _aRefrigeration & air conditioning & environmental control
260 _bDelhi: Prentice Hall Of India
_c1968
300 _a304
942 _2ddc
999 _c77814
_d77814