000 00313nam a2200121Ia 4500
008 220421s2009 xx 000 0 und d
020 _a8181160428
041 _aeng
082 _a370.78
_bRAI/EDU
100 _aRaina, M.K.
_9573025
245 _aEducational Research
260 _aNew Delhi
_b Essential Books
_c2009
999 _c399436
_d399436