APA (7th ed.) Citation

Drucker. (2001). The essential Drucker: Selections from the management works of Peter F. Drucker. HarperBusiness.

Chicago Style (17th ed.) Citation

Drucker. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. New York: HarperBusiness, 2001.

MLA (8th ed.) Citation

Drucker. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. HarperBusiness, 2001.

Warning: These citations may not always be 100% accurate.