APA引文

Bernal, J. D. (1969). Science in history. Autralia: Penguin Books.

Trích dẫn kiểu Chicago

Bernal, J. D. Science in History. Autralia: Penguin Books, 1969.

MLA引文

Bernal, J. D. Science in History. Autralia: Penguin Books, 1969.

警告：这些引文格式不一定是100％准确.