Cita APA (7th ed.)

Sklar, J. (2012). Principles of Web design (5th ed.). Course Technology, Cengage Learning ; Cengage Learnig.

Cita Chicago (17th ed.)

Sklar, Joel. Principles of Web Design. 5th ed. Australia ; New Delhi ; United States: Course Technology, Cengage Learning ; Cengage Learnig, 2012.

Cita MLA (8th ed.)

Sklar, Joel. Principles of Web Design. 5th ed. Course Technology, Cengage Learning ; Cengage Learnig, 2012.