000 00284nam a2200121Ia 4500
100 _aKosiur, David
020 _a1-57231-560-1
942 _cBK
245 _aUnderstanding electronic commerce
260 _aMicrosoft Press, Washington
_c1997
082 _a004.678 Kos
300 _ax,287
999 _c44784
_d44784