000 00268nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aRather, A,R.
245 0 _aEssentials Of Intructional Technolgy
260 _aNew Delhi
_bDPH
_c2004
300 _a263p.
942 _cBK
999 _c11171
_d11171