000 00297nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aKhan (MT) and Sharma (SR)
245 0 _aInstructional Technology : Media and Theory
260 _bKanishka
260 _c1993
365 _b400
942 _cBK
999 _c217985
_d217985