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