Dyfyniad APA

Ullmann, W. (1965). A history of political thought: The middle ages. Penguin.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.