00350nam a2200109Ia 4500 180315s9999 xx 000 0 und d 9780071592062 Christensen, Clayton M. Disrupting class : How disruptive innovation will change the way the world learns USA : 2008 mcGrawHill iii, 231 pages 356297 356297 0 0 0 CL CL GSL 2018-03-15 Library Fund 3 LB 1027 .C554 2008 C21401 2019-09-04 00:00:00 2019-08-19 2018-03-15 BK