ebrary, Inc. (2002). Themed issue on "A quality perspective". Emerald Group Publishing.
Cita Chicago (17th ed.)ebrary, Inc. Themed Issue on "A Quality Perspective". Bradford, England: Emerald Group Publishing, 2002.
Cita MLA (9th ed.)ebrary, Inc. Themed Issue on "A Quality Perspective". Emerald Group Publishing, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.