APA引文

Widdows, H. (2011). Global ethics: An introduction. Acumen.

芝加哥风格引文

Widdows, Heather. Global Ethics: An Introduction. Durham: Acumen, 2011.

MLA引文

Widdows, Heather. Global Ethics: An Introduction. Acumen, 2011.

警告：这些引文格式不一定是100％准确.