00476nam a2200145Ia 450000500170000000800410001702000180005804100080007608200150008410000240009924500720012326000500019530000160024565000690026120191108152613.0190710s9999    xx            000 0 und d  a0-07-059450-3  aeng  a154.41 Sn2  aSnelbecker, Glenn E 0aLearning theory, instructional theory and psycho educational design  aNew Yorkb: McGraw - Hill Book Copany, c1974  axvi, 527p.   aEducational psychology a| Learning - psychology a| Psychology