000 00516nam a2200097Ia 4500
008 120223s9999 xx 000 0 und d
082 _a153.15 CHA
100 _aChampion, R. A.
245 _aLearning and activation
260 _bJohn Wiley & Sons
_aSydney
_c1969
999 _c151546
_d151546