Electronic commerce / Pete Loshin, John Vacca. Loshin, Peter. Vacca, John R. Electronic commerce. HF5548.32 .L67 2004 381.142 21 LOE Includes index. Hingham, Mass. : Charles River Media, c2004. c2004. 2004 Text xxxix, 472 p. : http://www.loc.gov/catdir/toc/ecip045/2003013160.html eng