APA citiranje

Brown, R. A. (1972). The origins of modern Europe: The medieval heritage of western civilization. London: Constable.

Trích dẫn kiểu Chicago

Brown, R. Allen. The Origins of Modern Europe: The Medieval Heritage of Western Civilization. London: Constable, 1972.

MLA citiranje

Brown, R. Allen. The Origins of Modern Europe: The Medieval Heritage of Western Civilization. London: Constable, 1972.