APA引文

Pen, J. (1971). Income Distribution. London: Allen Lane the Penbuin Press.

Trích dẫn kiểu Chicago

Pen, Jan. Income Distribution. London: Allen Lane the Penbuin Press, 1971.

MLA引文

Pen, Jan. Income Distribution. London: Allen Lane the Penbuin Press, 1971.

警告：這些引文格式不一定是100％准確.