000 00303nam a2200133Ia 4500
100 _aDayton, C. Mitchell
365 _b
_10.95
942 _cBK
654 _a
245 _aDesign of educational experiments
260 _aNew York
_bMcGraw Hill
_c1970
082 _a311
300 _bHb
_c23.5cm
_axiv, 442
999 _c348679
_d348679
041 _aeng