000 00318nam a2200133Ia 4500
005 20260720174702.0
008 260720s2004 xx 000 0 und d
041 _aeng
082 _a371.333 VENE
100 _aVenkataiah, N
_9270234
245 _aEducational technology
260 _aNew Delhi
_c2004
300 _a234p
999 _c244412
_d244412