000 00257nam a2200121Ia 4500
100 _aTibble, J. W.
942 _cBK
654 _a
245 _aStudy of education
260 _aNew York
_bRoutledge & Kegan Paul
_c1966
082 _a370.7
300 _ax,240
999 _c414625
_d414625
041 _aeng