Cita APA (7a ed.)

Lidwell, W., & Holden, K. (2003). Universal principles and design. Rockport Publishers.

Cita Chicago Style (17a ed.)

Lidwell, Wiliiam, y Kritina Holden. Universal Principles and Design. Beverly, Massachusetts: Rockport Publishers, 2003.

Cita MLA (9a ed.)

Lidwell, Wiliiam, y Kritina Holden. Universal Principles and Design. Rockport Publishers, 2003.