Drucker, P. F. (1999). The frontiers of management: Where tomorrow’s decisions are being shaped. New York: Truman Talley Books/Plume.
استشهاد بنمط شيكاغوDrucker, Peter F. The Frontiers of Management: Where Tomorrow’s Decisions Are Being Shaped. New York: Truman Talley Books/Plume, 1999.
MLA استشهادDrucker, Peter F. The Frontiers of Management: Where Tomorrow’s Decisions Are Being Shaped. New York: Truman Talley Books/Plume, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.