APA引文

Quigley, C. (1979). The evolution of civilizations: An introduction to historical analysis. Indianapolis: Liberty Press.

Trích dẫn kiểu Chicago

Quigley, Carroll. The Evolution of Civilizations: An Introduction to Historical Analysis. Indianapolis: Liberty Press, 1979.

MLA引文

Quigley, Carroll. The Evolution of Civilizations: An Introduction to Historical Analysis. Indianapolis: Liberty Press, 1979.

警告：這些引文格式不一定是100％准確.