Cita APA (7th ed.)

Sklar, J. (2006). Principles of web design (3rd ed.). Thomson Course Technology.

Cita Chicago (17th ed.)

Sklar, Joel. Principles of Web Design. 3rd ed. Australia: Thomson Course Technology, 2006.

Cita MLA (9th ed.)

Sklar, Joel. Principles of Web Design. 3rd ed. Thomson Course Technology, 2006.