000 00310nam a2200133Ia 4500
100 _aTuckman, Bruce W.
020 _a0-15-502607-0
942 _cBK
654 _a
245 _aAnalyzing And designing Educational Research
260 _aNew York
_bHarcourt brace
_c1979
082 _a370.78
300 _ax,179
999 _c369177
_d369177
041 _aeng