000 00273nam a22001217a 4500
999 _c156058
_d156058
082 _a
_b
100 _aM I Khan
245 _aInstructional technology:
_bMedia and theory/
_cby M I Khan.
260 _a
_bKanushka,
_c1993.
300 _a340p.
650 _a
942 _cBK