APA ציטוט

Drucker, P. F. (2001). The essential Drucker: Selections from the management works of Peter F. Drucker. Harper Business.

Chicago Style (17th ed.) Citation

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

ציטוט MLA

Drucker, Peter Ferdinand. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. Harper Business, 2001.