000 00284nam a2200121Ia 4500
100 _aWheldall,Kevin
020 _a0-7099-3689-3
942 _cBK
245 _aBehaviour analysis in educational psychology
260 _aCroom H, London
_c1986
082 _a370.153 Whe
300 _ax,273
999 _c19777
_d19777