Keen, P. G. W., & McDonald, M. (2000). The eProcess edge: Creating customer value and business wealth in the Internet era. Osborne/McGraw-Hill.
Cita Chicago (17th ed.)Keen, Peter G. W., i Mark McDonald. The EProcess Edge: Creating Customer Value and Business Wealth in the Internet Era. Berkeley, Calif: Osborne/McGraw-Hill, 2000.
Cita MLA (9th ed.)Keen, Peter G. W., i Mark McDonald. The EProcess Edge: Creating Customer Value and Business Wealth in the Internet Era. Osborne/McGraw-Hill, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.