00274nam a2200109 a 450000500170000002000180001708200180003510000220005324500340007526000290010930000260013820251203111011.0  a9780415458030  a302.4072bBRS  aBruggeman, Jeroen  aSocial networksbintroduction  aNew YorkbRoutedgec2008  aviii,194p.c22cm.cPB