APA引文

Drucker, P. F. (2001). The Essential Drucker. Butterworth- Heinemann.

Chicago Style (17th ed.) Citation

Drucker, Peter F. The Essential Drucker. New Delhi: Butterworth- Heinemann, 2001.

MLA引文

Drucker, Peter F. The Essential Drucker. Butterworth- Heinemann, 2001.

警告：這些引文格式不一定是100％准確.