Bell, G. (2002). The competitive enterprise: 10 principles of business excellence for increased market share. McGraw-Hill Irwin.
Παραπομπή Chicago StyleBell, Geoffrey. The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share. McGraw-Hill Irwin, 2002.
Παραπομπή MLABell, Geoffrey. The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share. McGraw-Hill Irwin, 2002.
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