APA-viite

Harpe, G. G. (1942). Masters of political thought: Plato to Machiavelli. Oxford University.

Chicago-tyylinen lähdeviittaus

Harpe, George G. Masters of Political Thought: Plato to Machiavelli. London: Oxford University, 1942.

MLA-viite

Harpe, George G. Masters of Political Thought: Plato to Machiavelli. Oxford University, 1942.