000 00318nam a2200121Ia 4500
100 _aWheldall, kevin & Merrett, Frank
020 _a0-04-370151-5
942 _cBK
245 _apositive teaching the behavioural approach
260 _aGeorge allen & unwin, London
_c1984
082 _a371.1 Whe/Mer
300 _axi; 180
999 _c16978
_d16978