00411nam a2200145Ia 4500008004100000020001800041041000800059082001700067100001900084245009800103250000600201260003200207300001200239650001400251210716s2011    xx            000 0 und d  a9781906124717  aeng  a658.802 BROE  aBrown, Eileen.  aWorking the crowd: social media marketing for business.bSocial media marketing for business.  a1  aNew DelhibViva Booksc2011  axvi,160  aMarketing