00314nam a2200133Ia 4500008004100000041000800041082001000049100001400059245002800073260004400101300000800145365000800153999001900161231011s9999    xx            000 0 und d  aeng  a658.8  aHBR Press  aUnderstanding Marketing  bHarvard Business Review Press USAc2009  a132  b156  c894208d894208