000 00288nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.6 W214
100 _aWALLIS.R.A
245 0 _aAXIAL FLOW FANS AND DUCTS
260 _aNEW YORK
_bWiley
_c1983
300 _a25X17
942 _cBK
_2DDC
999 _c22053
_d22053