Wren, D. A., & Greenwood, R. G. (1998). Management innovators: The people and ideas that have shaped modern business. Oxford University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wren, Daniel A., و Ronald G. Greenwood. Management Innovators: The People and Ideas That Have Shaped Modern Business. New York: Oxford University Press, 1998.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Wren, Daniel A., و Ronald G. Greenwood. Management Innovators: The People and Ideas That Have Shaped Modern Business. Oxford University Press, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.