000 00280nam a2200121Ia 4500
008 160710s1947 xx 000 0 und d
082 _a621.16 SPO
100 _aSPORN,PHILIP
245 _aHEAT PUMPS
260 _bJOHN WILEY & SONS, INC.
_c1947
300 _a184
942 _2ddc
_cB
999 _c10865
_d10865