000 00310nam a2200109Ia 45e0
008 181001s1970 xx 000 0 und d
100 _aArora, Subhash
245 2 _aA course in refrigeration & Air conditioning
260 _aDelhi
_bDhapat Rai & Sons
_c1970
300 _a815
942 _2ddc
_cBK
999 _c2079
_d2079