Cita APA

 Sklar, J. (2006).  Principles of web design.  Thomson Course technology.

Chicago Style Citation

 Sklar, Joel.  Principles of Web Design.  Thomson Course technology, 2006.

Cita MLA

 Sklar, Joel.  Principles of Web Design.  Thomson Course technology, 2006.

Atenció: Aquestes cites poden no estar 100% correctes.