000 00291nam a2200121Ia 4500
100 _aSampath, K. & others
942 _cBK
245 _aIntroduction to educational technology
260 _aNew Delhi
_bSterling publ
_c1984
082 _a371.3
_bSam
300 _aviii,282
546 _aEnglish
999 _c337667
_d337667
041 _aeng