000 00317nam a2200121Ia 4500
008 250224s9999 xx 000 0 und d
020 _a700506128
082 _a510.72BELL
100 _aBell A W
245 0 _aResearch on Learning and Teaching
260 _bNFER Nelson Publishing Company Ltd
_c1983
942 _cBK
999 _c440841
_d440841