000 00291nam a2200121Ia 4500
020 _a9780071808316
082 _a658.4102
_bZIC
100 _aZichermann
245 4 _aThe Gamification Revolution
_cGabe Zichermann
260 _aNew York
_bMc Graw Hill
_c0071808310
300 _a235
942 _cBK
999 _c6733
_d6733