00462nam a2200157Ia 4500 4844 20261006003820.0 120911s9999 xx 000 0 und d 053498231X 650.02854 SIL Silver, Gerald A. 882 Data communications for business, 2nd ed. / Gerald A. Silver, Myrna L. Silver. 2E Boston : Boyd & Fraser Pub. Co., C1991. Electronic commerce. 5945 4844 4844 0 0 0 0 NU NU 2012-09-11 0 650.02854 SIL 5568 2012-09-11 00:00:00 2012-09-11 OS