APA引文

Williams, N. (2009). Duty and responsibility. Epitome Books.

芝加哥风格引文

Williams, Nancy. Duty and Responsibility. New Delhi: Epitome Books, 2009.

MLA引文

Williams, Nancy. Duty and Responsibility. Epitome Books, 2009.

警告：这些引文格式不一定是100％准确.