00289nam a2200097Ia 4500008004100000041000800041100002000049245006900069260004500138300000800183211209s1978    xx            000 0 und d  aeng  aHOOGENDOORN C J  aENEGY CONSERVATION IN HEATING COOLING AND VENTILATING BUILDINGS   aLONDONbHEMIS PHERE PUBLISHING CO.c1978  a901