00355nam a2200121Ia 4500008004100000020001800041041000800059084001300067100001800080245008200098260003900180653001400219160808s2014    xx            000 0 eng d  a9781471111709  aeng  aX:512CC  aBerger, Jonah  aContagious:bhow to build word of mouth in the digital age /cby Jonah Berger  aLondon :bSimon & Schuster,c2014.  aMarketing