000 00294nam a2200097Ia 4500
008 130123s9999 xx 000 0 und d
082 _a SNE
100 _aSnelbecker, Glenn E.
245 _aLearning Theory Insturctional Theory & Psychoeducational Design.
260 _aNew York
_bMcGraw - Hill.
_c1975
999 _c84077
_d84077