APA (7th ed.) Citation

Gettell, R. G. (1953). Gettell's history of political thought (2. ed.). Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Gettell, Raymond Garfield. Gettell's History of Political Thought. 2. ed. New York: Appleton-Century-Crofts, 1953.

MLA (9th ed.) Citation

Gettell, Raymond Garfield. Gettell's History of Political Thought. 2. ed. Appleton-Century-Crofts, 1953.