000 00336nam a2200133Ia 4500
008 220201s1974 xx 000 0 eng d
082 _a510
100 _aDomkundwar,S & Arora,SC
245 0 _aCourse in Refigeration and air conditioning
250 _a4th
260 _bDelhi: Dhanpat rai & sons
_c1974
300 _a559
942 _2ddc
999 _c79985
_d79985