000 00437nam a2200145Ia 4500
008 221102s9999 xx 000 0 und d
020 _a9780141041605
082 _a303.4833 SHI-C
100 _aShirky, Clay
245 0 _aCognitive Surplus: Creativity and generosity in a connected age
260 _bPenguin
_aNew Delhi
_c2010
300 _a242 p.
650 _aMass Media-Social aspects; Information Society; Social Media
942 _cBK
999 _c7727
_d7727