000 00312nam a2200121Ia 4500
008 220201s1970 xx 000 0 eng d
082 _a621.56
_bPAT
100 _aPatel, RC & Patel, BH
245 0 _aRefrigeration & air conditioning
260 _bBaroda: Acharya book depot
_c1970
300 _a319
942 _2ddc
999 _c75953
_d75953