000 00430nam a2200193Ia 4500
008 200208s9999 xx 000 0 und d
020 _a9788190484510
082 _aH 370.7 YAD
100 _a"Yadav, D. S."
245 0 _aSikshan takniki ke mool tatva
260 _aNew Delhi
260 _bNeha
260 _c2007
300 _a264p.
365 _b475
365 _dRS
650 _aEducation technology
942 _cB
999 _c217821
_d217821