000 00289nam a2200121Ia 4500
008 220201s1972 xx 000 0 eng d
082 _bPAT
100 _aPatel, P.M. etc.
245 0 _aPriciples of air conditioning
260 _aBombay
_bAllied Pub.
_c1972
300 _a247
942 _2ddc
999 _c18479
_d18479