00345nam a2200121Ia 450000500170000000800410001704100080005808200150006610000340008124500570011526000420017230000090021420260720174746.0260720s2006    xx            000 0 und d  aeng  a380.7 HART  aHarvard Business School Press  aEssential of corporate communication and publication  aBostonbHarvard Bussness Schoolc2006  a311p