APA (7th ed.) Citation

Drucker, P. F. (2007). The essential Drucker: Selections from the management works of Peter F. Drucker (Classic Drucker Collection ed.). Elsevier.

Chicago Style (17th ed.) Citation

Drucker, Peter F. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. Classic Drucker Collection ed. Oxford, UK: Elsevier, 2007.

MLA (9th ed.) Citation

Drucker, Peter F. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. Classic Drucker Collection ed. Elsevier, 2007.