000 00333nam a2200145Ia 4500
008 240723s9999 xx 000 0 und d
041 _aEnglish
084 _aT:(D)
_bN2
100 _aTara Chand
245 0 _aEducational technology
260 _aDelhi
_bAnmol Pub.
_c1992
300 _ap.416
650 _aEducation
942 _cBK
999 _c320082
_d320082