(1999). A practical guide to usability testing / Joseph S. Dumas, Janice C. Redish.
Cita Chicago (17th ed.)A Practical Guide to Usability Testing / Joseph S. Dumas, Janice C. Redish. 1999.
Cita MLA (9th ed.)A Practical Guide to Usability Testing / Joseph S. Dumas, Janice C. Redish. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.