APA-referens (7:e uppl.)

Keen, P. G. W., & McDonald, M. (2000). The eProcess edge: Creating customer value and business wealth in the Internet era. Osborne/McGraw-Hill.

Chicago-referens (17:e uppl.)

Keen, Peter G. W., och Mark McDonald. The EProcess Edge: Creating Customer Value and Business Wealth in the Internet Era. Berkeley, Calif: Osborne/McGraw-Hill, 2000.

MLA-referens (9:e uppl.)

Keen, Peter G. W., och Mark McDonald. The EProcess Edge: Creating Customer Value and Business Wealth in the Internet Era. Osborne/McGraw-Hill, 2000.