ebrary, Inc. (2005). Website usability: Research and case studies. Emerald Group Publishing.
Citace podle Chicago (17th ed.)ebrary, Inc. Website Usability: Research and Case Studies. Bradford, England: Emerald Group Publishing, 2005.
Citace podle MLA (9th ed.)ebrary, Inc. Website Usability: Research and Case Studies. Emerald Group Publishing, 2005.
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