000 00274nam a2200133Ia 4500
100 _aRai, B. C.
365 _b10
942 _cBK
654 _a
245 _aEducational psychology
260 _aLucknow
_bPrakashan Kendra
_c1970
082 _a370.15
300 _aviii,594
999 _c415513
_d415513
041 _aeng