000 00326nam a2200157Ia 4500
100 _aOlsen, Dan R.
080 _a004.019 Ols
526 _dNTB
526 _aUG
366 _f20
942 _cBK
245 _aHuman computer interaction .
260 _aCengage Learning,
_bNew Delhi
_c2010
300 _a512,6
546 _aE
999 _c73428
_d73428