Drucker, P. F. (2006). Classic Druck: Essential wisdom of Perter Drucker from the pages of Harvard Business Review. Harvard Business School Publishing Corporation.
استشهاد بنمط شيكاغوDrucker, Peter F. Classic Druck: Essential Wisdom of Perter Drucker from the Pages of Harvard Business Review. Boston: Harvard Business School Publishing Corporation, 2006.
MLA استشهادDrucker, Peter F. Classic Druck: Essential Wisdom of Perter Drucker from the Pages of Harvard Business Review. Harvard Business School Publishing Corporation, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.