APA引文

Drucker, P. F. (1999). Management challenges for the 21st century (First edition.). HarperBusiness.

Chicago Style (17th ed.) Citation

Drucker, Peter F. Management Challenges for the 21st Century. First edition. New York: HarperBusiness, 1999.

MLA引文

Drucker, Peter F. Management Challenges for the 21st Century. First edition. HarperBusiness, 1999.

警告：這些引文格式不一定是100％准確.