00367nam a2200109Ia 4500 180315s9999 xx 000 0 und d 9780071808316 Zichermann, Gabe Linder, Joselin The gamification revolution : How leaders leverage game mechanics to crush the competition USA : 2013 McGrawHill v, 235 pages 356316 356316 0 0 0 CL CL GSL 2018-03-15 Library Fund 3 6 HF 5414 .Z53 2013 C21420 2019-10-19 00:00:00 2019-07-03 2018-03-15 BK