APA引文

Gettell, R. G. (1964). History of political thought (2nd ed.).

Chicago Edition Citation

Gettell, Raymond Garfield. History of Political Thought. 2nd ed. 1964.

MLA引文

Gettell, Raymond Garfield. History of Political Thought. 2nd ed. 1964.

警告：這些引文格式不一定是100％准確.