Keller, S., & Price, C. (2011). Beyond performance: How great organizations build ultimate competitive advantage. John Wiley and Sons.
استشهاد بنمط شيكاغوKeller, Scott, و Colin Price. Beyond Performance: How Great Organizations Build Ultimate Competitive Advantage. New Jersey: John Wiley and Sons, 2011.
MLA استشهادKeller, Scott, و Colin Price. Beyond Performance: How Great Organizations Build Ultimate Competitive Advantage. John Wiley and Sons, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.