000 00285nam a2200109Ia 4500
008 231219s1969 xx 000 0 und d
041 _aeng
100 _aJOHN W.BEST
245 _aRESEARCH IN EDUCATON
260 _aDELHI
_bPRENTICE HILLOF INDIA PVT LTD NEW DELHI
_c1969
300 _a388p
999 _c344104
_d344104