000 00309nam a22001217a 4500
020 _a8182051738
082 _a371.33
_bEDU
245 _aEducational technology
_cedited by V. C. Pandey
260 _aDelhi:
_bIsha Books,
_c2005.
300 _avi, 312p.
650 _aEducational technology
_9114704
942 _cBK
999 _c67671
_d67671