000 00313nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a693
082 _b832 WE
100 _aWeller J.W.
245 0 _aThermal Energy Conservat
260 _aLondon
260 _bApplied Pub.
260 _c1981
300 _a269
999 _c33339
_d33339