000 00340nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e101293
_aMAIN
041 _aEnglish
082 _a371.3028 E 82 E
100 _aRuhela, S P Ed
245 0 _aEducational technology
260 _aDelhi
_bIPD
_c2002
300 _a362 p.
942 _cBK
999 _c119265
_d119265