000 00323 a2200121 4500
080 _a154:159.4
_bC 452 L
245 1 _aLearning and activation
_cby R.A. Champion
260 _aSydney
_bJohn Wiley & Sons Australasia Pvt. Ltd.
_c1968
650 _aLearning
100 1 _aChampion, R.A.
_d
300 _a124 pp.
901 _a124547
999 _c59239
_d59239