000 00293nam a2200133Ia 4500
100 _aVishnoi (ed)
020 _a81-903668-9-0
654 _aEDUCATION
942 _cBK
245 _aEducational Technology
260 _aKSKPublishers, New Delhi
_c2008
082 _a371.33 Vis
300 _a161p
999 _c46923
_d46923