Bell, G. (2002). The competitive enterprise: 10 principles of business excellence for increased market share. McGraw-Hill Irwin.
استشهاد بنمط شيكاغوBell, Geoffrey. The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share. McGraw-Hill Irwin, 2002.
MLA استشهادBell, Geoffrey. The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share. McGraw-Hill Irwin, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.