APA引文

Drucker, P. (2008). Essential Drucker. Butterworth-Heinemann.

Chicago Edition Citation

Drucker, Peter. Essential Drucker. Oxford: Butterworth-Heinemann, 2008.

MLA引文

Drucker, Peter. Essential Drucker. Butterworth-Heinemann, 2008.

警告：這些引文格式不一定是100％准確.