00370nam a2200145Ia 450000100060000000800410000602000180004704000130006508200190007810000190009724500450011626000450016130000110020654600070021763954150109s9999    xx            000 0 und d  a9781250002952  cPK-LaUMT  a 324.73bMEN-S  aMendelson, B.J  aSocial media is bullshitcMendelson, B.J  aNew York,USA:bSt. Martin's Press,c2012  a227 p.  aEN