000 00277nam a2200109Ia 4500
008 210811s9999 xx 000 0 und d
100 _aK. Sampath,
245 0 _aIntroduction to Educational Technology
260 _c1990
300 _aviii, 282p.
440 _aGifted by V.V. Reddy
999 _c27626
_d27626