Cita APA (7th ed.)

Lidwell, W., Holden, K., & Butler, J. (2010). Universal principles of design. Rockport Publishers.

Cita Chicago (17th ed.)

Lidwell, William, Kritina Holden, i Jill Butler. Universal Principles of Design. Beverly, Mass.: Rockport Publishers, 2010.

Cita MLA (9th ed.)

Lidwell, William, et al. Universal Principles of Design. Rockport Publishers, 2010.