000 00315nam a2200145Ia 4500
700 _aRao, V.K.
100 _aRao, V.K.
020 _a81-7169-236-2
942 _cBK
654 _a
245 _aEducation and Development
260 _aNew Delhi
_bCommonwealth Publishers
_c1992
082 _a370
300 _a8260
999 _c372849
_d372849
041 _aeng