Drucker, P. F. (1986). The frontiers of management: Where tomorrow's decisions are being shaped today. Truman Talley Books/Plume.
Lua i Stíl Chicago (17ú heag.)Drucker, Peter F. The Frontiers of Management: Where Tomorrow's Decisions Are Being Shaped Today. New York: Truman Talley Books/Plume, 1986.
Lua MLA (8ú heag.)Drucker, Peter F. The Frontiers of Management: Where Tomorrow's Decisions Are Being Shaped Today. Truman Talley Books/Plume, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.