APA引文

Drucker, P. F. (2001). Management Challenges for the 21st Century. HarperCollins Publishers.

芝加哥风格引文

Drucker, Peter F. Management Challenges for the 21st Century. New York: HarperCollins Publishers, 2001.

MLA引文

Drucker, Peter F. Management Challenges for the 21st Century. HarperCollins Publishers, 2001.

警告：这些引文格式不一定是100％准确.