APA引文

Drucker, P. F. (1999). Management challenges for the 21st century. Butterworth Heinemann.

Chicago Style (17th ed.) Citation

Drucker, Peter Ferdinand. Management Challenges for the 21st Century. Oxford, England: Butterworth Heinemann, 1999.

MLA引文

Drucker, Peter Ferdinand. Management Challenges for the 21st Century. Butterworth Heinemann, 1999.

警告：這些引文格式不一定是100％准確.