000 00256nam a2200097Ia 4500
008 160710s1942 xx 000 0 und d
100 _aPORGES JOHN
245 _aHAND BOOK OF HEATING VENTILATION AND AIR CONDITIONING
260 _bNEWMAN
_c1942
942 _2ddc
_cB
999 _c5298
_d5298