APA (7th ed.) Citation

Lewis, B. (1999). Architectures that don't make end-users effective have predictable results. InfoWorld, 21(29), 90.

Chicago Style (17th ed.) Citation

Lewis, Bob. "Architectures That Don't Make End-users Effective Have Predictable Results." InfoWorld 21, no. 29 (1999): 90.

MLA (9th ed.) Citation

Lewis, Bob. "Architectures That Don't Make End-users Effective Have Predictable Results." InfoWorld, vol. 21, no. 29, 1999, p. 90.