Sklar, J. (2012). Principles of Web design (5th ed.). Course Technology, Cengage Learning ; Cengage Learnig.
Lua i Stíl Chicago (17ú heag.)Sklar, Joel. Principles of Web Design. 5th ed. Australia ; New Delhi ; United States: Course Technology, Cengage Learning ; Cengage Learnig, 2012.
Lua MLA (8ú heag.)Sklar, Joel. Principles of Web Design. 5th ed. Course Technology, Cengage Learning ; Cengage Learnig, 2012.
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