000 00254nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aKakkar, S.B.
245 0 _aEducational Psychology
260 _aNew Delhi
_bPHI
_c1993
300 _a193p.
942 _cBK
999 _c11158
_d11158