APA引文

Asimov, I. (1979). Isaac Asimov's book of facts. New York.

Trích dẫn kiểu Chicago

Asimov, Isaac. Isaac Asimov's Book of Facts. New York, 1979.

MLA引文

Asimov, Isaac. Isaac Asimov's Book of Facts. New York, 1979.

警告：这些引文格式不一定是100％准确.