00249nam a2200109Ia 4500008004100000041000800041082001700049100001800066245002600084260002200110365000700132230303s9999    xx            000 0 und d  aeng  a621.4022 HEW  aHEWITT (G.F.)  aProcess Heat Transfer  aBostonbBocaRatan  cRS