000			00308nam a2200133Ia 4500
100			_aChanan Gabriel
020			_a85633 0019
942			_cBK
654			_a
245			_aTowards a Science of Teaching
260			_aNew York _bNFER Publishing Company Ltd . _c1973
082			_a371. 3
300			_c24 .7 cm
999			_c416273 _d416273
041			_aeng