00402nam a2200145Ia 4500008004100000020001800041040002500059082003100084082000900115100002000124245006000144250000800204260003600212490000800248240730s9999    xx            000 0 und d  a9781680957136  aNORSU-GuicNORSU-Gui  aCir.363.325/Le46s/2018/c.1  b4150  a3G E - Learning 0aSocial media internet for public relations and branding  ac.1  aNew Yorkb3G E - Learningc2018  vc.1