APA Alıntı

Ullmann, W. (1965). History of Political Thought: The Middle Ages. Penguin.

Chicago Stili Alıntı

Ullmann, Walter. History of Political Thought: The Middle Ages. England: Penguin, 1965.

MLA Alıntı

Ullmann, Walter. History of Political Thought: The Middle Ages. Penguin, 1965.