000			00317nam a2200133Ia 4500
008			140317s9999 xx 000 0 und d
082			_a621.4
100			_aAmbrose,E.R.
245			_aHeat pumps and lectric heating.
260			_aN.Y. _bJohn wiley , Sons. _c1966
300			_a205
653			_aHeat
942			_2ddc _cBK
999			_c5720 _d5720