APA-viite (7. p.)

Sklar, J., & Farkas, D. (2009). Principles of Web design (4th ed.). Course Technology, Cengage Learning.

Chicago-viite (17. p.)

Sklar, Joel, ja David Farkas. Principles of Web Design. 4th ed. Australia: Course Technology, Cengage Learning, 2009.

MLA-viite (9. p.)

Sklar, Joel, ja David Farkas. Principles of Web Design. 4th ed. Course Technology, Cengage Learning, 2009.