Summers, D. C. S. (2009). Quality management: Creating and sustaining organizational effectiveness (2nd ed.). Pearson/Prentice Hall.
Chicago-viite (17. p.)Summers, Donna C. S. Quality Management: Creating and Sustaining Organizational Effectiveness. 2nd ed. Upper Saddle River, N.J: Pearson/Prentice Hall, 2009.
MLA-viite (9. p.)Summers, Donna C. S. Quality Management: Creating and Sustaining Organizational Effectiveness. 2nd ed. Pearson/Prentice Hall, 2009.
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