000			00283nam a2200109Ia 4500
100			_aJr. of Educational Tecnology system
942			_cBV
654			_a
245			_aJr. of Educational Tecnology system
260			_aNew York _bBaywood publishing company,Inc. _c1990
082			_a371.3
999			_c356745 _d356745
041			_aeng