000 00278nam a2200109Ia 4500
100 _aRichmond, W. Kenneth (ed)
942 _cBK
245 _aThe concept of educational technology: a dialogue
260 _aWeidenfeld & Nicolson, London
_c1970
082 _a371.3 Ric
300 _a254
999 _c9715
_d9715